Encyclopedia

3rd Infantry Battalion (Ireland) The 3rd Infantry Battalion is a unit of the Irish Army infantry corps. The battalion traces its history back to 1923, when the garrisons of several towns in the north-west of Ireland (the province of Ulster) were ordered to amalgamate and form the 3rd Infantry Battalion.
3rd Infantry Division (Germany) The German 3rd Infantry Division was established under the cover name Wehrgauleitung Frankfurt in 1934 by expanding the 3rd Division of the Reichswehr. It was redesignated Kommandant von Frankfurt shortly afterward, and took on its bona fide name when the formation of the Wehrmacht was announced in October of 1935.
3rd Infantry Division (United Kingdom) The British 3rd Infantry Division, known as the Iron Division, was originally formed in 1809 by Arthur Wellesley, 1st Duke of Wellington for service in the Peninsula War, and was known as the Fighting 3rd under Sir Thomas Picton during the Napoleonic Wars. The Division fought at the battle of Waterloo, the Crimean War and the Second Boer War.
3rd Light Armored Reconnaissance Battalion 3rd Light Armored Reconnaissance Battalion (3rd LAR) is an armored battalion of the United States Marine Corps. Their primary weapon system is the LAV-25 and they are part of the 1st Marine Division and I Marine Expeditionary Force.
3rd Light Division (Germany) The 3rd Light Division (sometimes described as Light Mechanized or Light Panzer to distinguish it from the later Light infantry divisions) was raised in November 1938. In 1939 it fought in the Invasion of Poland.
3rd Low Altitude Air Defense Battalion 3rd Low Altitude Air Defense Battalion (3rd LAAD) is an air defense unit of the United States Marine Corps. They are part of Marine Air Control Group 38 (MACG-38) and the 3rd Marine Aircraft Wing (3rd MAW) and are currently based at Marine Corps Base Camp Pendleton, California.
3rd millennium The third millennium (so called because it is the third period of 1000 years in the Common Era) is a period of time which began on 1 January 2001 and will end on 31 December 3000. As the millennium currently in progress, only its first decade, the 2000s, can be the subject of the historian's attention, the remaining part of the 21st century (such as the predicted stagnation of world population at some 10 billion in the 2050s) and longer-term trends being the province of futures studies.
3rd millennium BC The 3rd millennium BC spans the Early to Middle Bronze Age. It represents a period of time in which imperialism, or the desire to conquer, grew to prominence, in the city states of the Middle East, but also throughout Eurasia, with Indo-European expansion to Anatolia, Europe and Central Asia.
3rd millennium BC in North American history The 3rd millennium BC in North American history provides a time line of events occurring within the present political boundaries of United States (including territories) from 3000 BC through 2001 BC in the Gregorian calendar. Although this time line segment may include some European or other world events that profoundly influenced later American life, it focuses on developments within Native American (and Polynesian) communities.
3rd Maine Volunteer Infantry Regiment The 3rd Maine Volunteer Infantry Regiment was mustered in at Augusta, Maine for three year's service on June 4, 1861 and were mustered out in June, 1864. Veterans who had re-enlisted and those recruits still liable to serve were transferred to 17th Maine Volunteer Infantry Regiment.
3rd Marine Aircraft Wing The 3rd Marine Aircraft Wing is the major west coast aviation unit of the United States Marine Corps. They are based at Marine Corps Air Station Miramar, California and fall under the I Marine Expeditionary Force.
3rd Marine Logistics Group The 3rd Marine Logistics Group (3D MLG) is a logistics unit of the United States Marine Corps and is headquartered at Camp Smedley Butler, Okinawa, Japan. 3D MLG was formerly the 3rd Force Service Support Group (3D FSSG), with official redesignation on October 28, 2005.
3rd Medical Battalion The 3rd Medical Battalion (3D MED BN) is a medical support unit of the United States Marine Corps and is headquartered at Camp Hansen, Okinawa, Japan. The unit falls under the 3rd Marine Logistics Group and the III Marine Expeditionary Force.
3rd Michigan Infantry At 8:30 on the morning of Thursday, June 13, 1861, the ten companies of the Third Michigan infantry, led by its regimental band and the field and staff officers, left their quarters at Cantonment Anderson. The camp had been established on the site of the county fairgrounds, about two and a half miles south of the city of Grand Rapids.
3rd Mountain Division (Germany) The German 3rd Mountain Division was raised from the Austrian 5th and 7th Divisions. It took part in the Invasion of Poland 1939 as part of Army Group South, but was transferred to garrison the West Wall before that campaign was over.
3rd Parliament of Ontario The 3rd Parliament of Ontario was in session from 18 January 1875 until 25 April 1879, following the 1875 general election in which the Reform party (today known as the Ontario Liberal Party) was returned as the majority party. Oliver Mowat was again the province's Premier.
3rd Pennsylvania Regiment The 3rd Pennsylvania Regiment was raised, on December 9, 1775, at Philadelphia, Pennsylvania for service with the Continental Army. The regiment would see action during the Battle of Valcour Island, Battle of Brandywine, Battle of Germantown, Battle of Monmouth and the Battle of Springfield.
3rd Pennsylvania Reserve Regiment The 3rd Pennsylvania Reserve Regiment, also known as the 32nd Pennsylvania Volunteer Infantry Regiment, was an infantry regiment that served in the Union Army during the American Civil War. It was part of the 2nd Brigade of the Pennsylvania Reserves division.
3rd Reconnaissance Battalion 3rd Reconnaissance Battalion (3rd Recon) is an infantry battalion in the United States Marine Corps based out of Camp Smedley Butler, Okinawa, Japan consisting of approximately 300 Marines and Sailors. They fall under the 3rd Marine Division.
3rd Regiment of Foot The 3rd Regiment of Foot is one of the oldest infantry regiments in the British Army with a history dating back to 1572. It subsequently became The Buffs (East Kent Regiment) and The Buffs (Royal East Kent Regiment) in 1935.
3rd Sculpture International 3rd Sculpture International was an exhibition of sculpture that included works from 250 sculptors from around the world. It was "organized by the Fairmont Park Art Association under the terms of a bequest made to the Association by the late Ellen Phillips Samuel.
3rd South Carolina Regiment The 3rd South Carolina Regiment was raised on June 6, 1775, at Ninety-Six Court House, South Carolina, for service with the Continental Army. The regiment saw action at the Siege of Savannah and the Siege of Charleston.
3rd Special Troops Battalion, 3rd Brigade Combat Team, 101st Airborne Division (Air Assault) The 3rd Special Troops Battalion is a support battalion attatched to the 3rd Brigade Combat Team 187th Infantry Regiment ("Rakkasans"), 101st Airborne Division (Air Assault), Fort Campbell, Kentucky. Created on 15 September 2004 as part of the U.
3rd Street (Los Angeles) 3rd Street in Los Angeles is a major east/west street. It begins in downtown Beverly Hills by Santa Monica Boulevard and ends at Alameda Street in Downtown Los Angeles, although east of Alameda, it becomes 4th Street, where it heads to East Los Angeles, where it turns back into 3rd Street upon crossing Indiana Street.
3rd Street (Manhattan) 3rd Street is the third southernmost numbered street in Manhattan. The numeric street-naming grid in Manhattan, created as part of the Commissioners' Plan of 1811, begins immediately north of Houston Street with 1st Street at Avenue A, although the grid does not take full hold until 13th Street.
3rd Strike 3rd Strike is a former rap/metal group, started by Jim Korthe (lead singer), Todd Deguchi (guitar), PJ McMullan (drums) and Gabe Hammersmith (bass). Their lyrics were primarily based upon the former lives of the group's members, primarily Korthe's gang and drug peddling roots.
3rd United States Congress The Third United States Congress was a meeting of the legislative branch of the United States federal government, comprised of the United States Senate and the United States House of Representatives. It met at Congress Hall in Philadelphia Pennsylvania from March 4 1793 to March 3 1795, during the first two years of the second administration of U.
3rd United States Congress - Membership Changes The Third United States Congress was a meeting of the legislative branch of the United States federal government, comprised of the United States Senate and the United States House of Representatives. It met at Congress Hall in Philadelphia Pennsylvania from March 4 1793 to March 3 1795, during the first two years of the second administration of U.
3rd United States Congress - Political Parties The Third United States Congress was a meeting of the legislative branch of the United States federal government, comprised of the United States Senate and the United States House of Representatives. It met at Congress Hall in Philadelphia Pennsylvania from March 4 1793 to March 3 1795, during the first two years of the second administration of U.
3rd United States Congress - State Delegations The Third United States Congress was a meeting of the legislative branch of the United States federal government, comprised of the United States Senate and the United States House of Representatives. It met at Congress Hall in Philadelphia Pennsylvania from March 4 1793 to March 3 1795, during the first two years of the second administration of U.
3rd Vermont Infantry The 3rd Regiment, Vermont Volunteer Infantry (or 3rd VVI) was a three years infantry regiment in the Union Army during the American Civil War. It served in the eastern theater, predominantly in the VI Corps, Army of the Potomac, from July 1861 to July 1865.
3rd Virginia Regiment The 3rd Virginia Regiment was raised on December 28, 1775 at Alexandria, Virginia for service with the Continental Army. The 3d Virginia's initial commander was Colonel Hugh Mercer, who was quickly promoted to brigadier general.
3rd World Scout Jamboree The 3rd World Scout Jamboree was held in 1929 at Arrowe Park in Upton, United Kingdom. As it was commemorating the 21st birthday of Scouting for Boys and the Scouting movement, it is also known as the Coming of Age Jamboree.
3rd-LOVE Paradise- was J-pop idol group Morning Musume's third album, released March 23,2000. This was the group's most successful album (with the exception of the Best albums) selling 863,300 copies and stayed at the Top 30 in the Oricon charts for 7 weeks.
3rd/4th Cavalry Regiment 3rd/4th Cavalry Regiment is an armoured regiment of the Australian Army, and is third in seniority in the Royal Australian Armoured Corps. The regiment was formed in 1981 through the amalgamation of the 3rd Cavalry Regiment and the 4th Cavalry Regiment.
3rd/4th County of London Yeomanry (Sharpshooters) The 3rd/4th County of London Yeomanry (Sharpshooters) was formed in July 1944 by the amalgamation at Carpiquet Airfield in Normandy of the two existing Sharpshooters' regiments: the 3rd County of London Yeomanry (Sharpshooters) and 4th County of London Yeomanry (Sharpshooters), both of which were veterans of the 8th Army. Amalgamation was necessitated by the shortage of manpower constraining the British Army at that stage of the War, coupled with the losses sustained thus far in the Normandy campaign (including by 4th CLY at the disastrous Battle of Villers-Bocage in June 1944).
3RRR 3RRR (pronounced "Three Triple R", or simply "Triple R") is a popular Australian community radio station, based in Melbourne. It is the largest per capita subscribed radio station in the world.
3some 3some is the name of an annual festival of original student-written theatre, produced by the University of Canterbury Drama Society, in Christchurch, New Zealand. Its deliberately provocative name refers to the number of plays, three, that are selected for performance each year (although on two occasions (in 2003 and 2004) the number has been enlarged to include four plays, and so hence the extended title 3some with 4play).
3S Aerial Tramway The 3S Aerial Tramway is a big cabin aerial tramway which was developed by the Swiss company Roll transport systems in Thun to unite the advantages of a pendulum aerial tramway with their one normal, coupleable single rope cabin aerial tramway.
3Station The 3Station was a diskless workstation, developed by Bob Metcalfe at 3Com and first available in 1986. The 3Station/2E had a 10 MHz 80286 processor, 1 megabyte of RAM (expandable to 5MB), VGA-compatible graphics with 256kB of video RAM, and integrated AUI/BNC network transceivers for LAN access.
3T 3T are an American musical group made up of Tito Jackson and the late Delores "Dee-Dee" Jackson's three sons: Toriano Adaryll "Taj," Jr. (4 Aug 1973), Taryll Adren (8 Aug 1975) and Tito Joe "T.
3T3 cells 3T3 cells come from a cell line established in 1962 by two scientists then at the Department of Pathology in the New York University School of Medicine, George Todaro and Howard Green. The 3T3 cell line has become the standard fibroblast cell line.
3Ws Oval The 3Ws Oval is a large open space at the centre of the Cave Hill Campus of the University of the West Indies in Barbados. Mostly known for the sculpture in the shape of three large wickets that stand tall at the edge of the field.
3Xtrim 3X55 Trener The 3X55 Trener (Trainer) and 3X47 Ultra are a family of ultralight civil aircraft produced in Poland by the 3Xtrim Aircraft Factory. Both are two-seat, high-wing, strut-braced monoplanes with fixed tricycle undercarriage and available only as completed aircraft.
3ZE 3ZE or as it became known 3ZEFM is a local radio station that operated in Ashburton, New Zealand. The station was originally launched on an AM frequency as an independently operated station then after being sold by Radio New Zealand's when the Government divested itself of its commercial radio stations became part of the Community Radio Network.
4 Alone Part of the 2003 Adult at 14 season, 4 Alone is an insight into teenage social behavior. Involving a group of ten 14-year old boys and girls spend five days and nights together in a house divested of the trappings of 'teendom': no TV, video games, mobile phones or CD players are allowed.
4 Baruch 4 Baruch, also known as the Paraleipomena of Jeremiah when combined with the Epistle of Jeremy, is a text regarded as apocryphal by all Christian denominations except for the Ethiopian Orthodox Church. It is regarded as pseudepigraphal, meaning that Baruch was not the actual author.
4 color rebellion 4 color rebellion is a multi-author video gaming blog founded in December 2004 that focuses primarily on Nintendo video games and systems, with occasional coverage regarding independent video games, comic books, and movies. Articles published on the site are featured on UK-based News Portal, News Now.
4 for Texas 4 for Texas is a 1963 western comedy starring Frank Sinatra, Dean Martin, Anita Ekberg, and Ursula Andress, and featuring screen thugs Charles Bronson and Mike Mazurki, with a memorable cameo appearance by the Three Stooges (Larry Fine, Moe Howard, and Curly Joe DeRita). The film was written by Teddi Sherman and Robert Aldrich, and directed by Robert Aldrich.
4 Front 4 Front is a three-piece, instrumental progressive/jazz fusion act from the United States featuring Happy the Man's drummer Joe Bergamini. The band incorporates a mix between progressive rock, progressive metal and jazz fusion, basically; being highly influenced by bands like Rush, Dream Theater, Emerson, Lake & Palmer, Mahavishnu Orchestra and Return to Forever all along.
4 Gorkha Rifles The 4 Gorkha Rifles is a regiment of the Indian Army and was transferred from the British Indian Army at the time of India's independence in 1947. The regiment was formerly known as the 4th Prince of Wales's Own Gurkha Rifles was originally a Gurkha regiment of the British Indian Army.
4 metres 4 metres (4 m, 70 MHz) is an amateur radio frequency band in the lower Very High Frequency spectrum. Traditionally only allocated in a small number of countries in Europe and Africa, the decline in VHF television broadcasts, movement away from the old Eastern European VHF FM broadcast band and migration of commercial stations to higher frequencies have led to slow but steady growth in the number of countries where 4 metre operation is permitted.
4 Maccabees The book of 4 Maccabees is a homily or philosophic discourse praising the supremacy of pious reason over the passions. While once accepted as a deuterocanonical book by the Orthodox, it is increasingly relegated to an appendix of apocryphal works, possibly due to its use of pagan thought, but more to be due to the differences between the dialogue of the martyrs that it portrays and the one in 2 Maccabees.
4 March 2001 BBC bombing On Sunday, 4th March, 2001 the Real IRA detonated a car bomb outside the BBC's main news centre in the Shepherd's Bush area of West London at 0030GMT. Officers were carrying out a controlled explosion on the bomb with a bomb-disposal robot when it went off yards from the front door of BBC Television Centre.
4 Nations Cup The 4 Nations Cup is an annual women's ice hockey tournament, held between the major national teams in the sport; currently, these are Canada, the United States, Sweden and Finland. Until 2000, when Sweden joined, the tournament was the 3 Nations Cup.
4 pi laser The 4 pi laser system was a very early inertial confinement fusion related experiment done at Lawrence Livermore National Laboratory in the mid-1960s. It had 12 ruby laser beams arranged around a gas-filled target chamber about 20 centimeters in diameter.
4 Seasons of Loneliness "4 Seasons of Loneliness" is a R&B/pop ballad recorded by Philadelphia-based vocal quartet Boyz II Men. Written and produced by Jimmy Jam and Terry Lewis, the song was issued as the first single from the Evolution album in 1997.
4 Square (television) 4 Square (also called Four Square) is a preschool/educational television show that airs on (and was assumedly created by) Treehouse TV of Toronto, Ontario, Canada. It teaches kids all about musical arts (which in this case are song, rhythm, poetry and dance) in segments.
4 Tha Fam EP 4 Tha Fam is a short album by Jamie Madrox of Twiztid created in 2003 For Download At Their Website and is 22:22 in length. It mostly features Madrox rapping over other people's instrumentals, using production by Dan The Automator, among others.
4 Tunes The 4 Tunes were probably the leading black Pop vocal group during the 1950s. Ironically, this was the decade when rhythm & blues and rock & roll were being absorbed into the top 40 charts, ultimately to replace the Pop stars of the earlier 50s.
4 World Trade Center World Trade Center 4 was a 9-story low-rise office building in the southeast corner of the site, in Lower Manhattan, New York City. It was damaged beyond repair as a result of the September 11, 2001 attacks and was later demolished.
4-10-0 Under the Whyte notation for the classification of steam locomotives, a 4-10-0 locomotive has four leading wheels followed by ten driving wheels, with no trailing wheels. Central Pacific Railroad's El Gobernador, built in 1883, was the only locomotive with this wheel arangment to operate in the United States.
4-12-2 A 4-12-2, in the Whyte notation for the classification of steam locomotives by wheel arrangement, is a locomotive with four leading wheels in a leading truck, twelve driving wheels (six axles) in a rigid frame, and two trailing wheels in a trailing truck.
4-14-4 A 4-14-4, in the Whyte notation for the classification of steam locomotives by wheel arrangement, is a locomotive with four leading wheels in a leading truck, fourteen driving wheels (seven axles) in a rigid frame, and four trailing wheels in a trailing truck. The equivalent UIC classification is 2'G2'.
4-2-0 In the Whyte notation, a 4-2-0 is a railroad steam locomotive that consists of a 4-wheel leading truck followed by a single driving axle. This type of locomotive, often called a Jervis type, was common on American railroads from the 1830s through the 1850s.
4-4-1 4-4-1 (also written as "441") are an alternative-pop Christian rock band who played primarily in the 1980’s. 4-4-1 consisted of lead singer/guitarist John McNamara, drummer Steve Giali, lead guitarist John Giali and bassist/keyboardist Glenn Holland.
4-4-2 (locomotive) In the Whyte notation a 4-4-2 is a steam locomotive that has a two-axle leading truck, two powered driving axles and a one-axle trailing truck. This locomotive wheel arrangement is commonly called an Atlantic type.
4-4-4 A 4-4-4, in the Whyte notation for the classification of steam locomotives by wheel arrangement, is one with four leading wheels arranged in a leading truck, four coupled driving wheels (two driving axles), and four trailing wheels in a trailing truck. In the United States, this arrangement was named the Reading type, since the Philadelphia and Reading Railroad was the first to use it.
4-4-6-4 A 4-4-6-4, in the Whyte notation for the classification of steam locomotives by wheel arrangement, is one that has four leading wheels followed by four coupled driving wheels, a second set of six coupled driving wheels and four trailing wheels.
4-6-0 In the Whyte notation, a 4-6-0 is a railroad steam locomotive that has a two-axle leading truck followed by three driving axles. This wheel arrangement became the second-most popular configuration for new steam locomotives in America in the mid-19th century.
4-6-2 Under the Whyte notation for the classification of steam locomotives, a 4-6-2 locomotive has four leading wheels (generally arranged in a leading truck), six coupled driving wheels and two trailing wheels (often but not always in a trailing truck).
4-6-2+2-6-4 A 4-6-2+2-6-4, in the Whyte notation for the classification of steam locomotives by wheel arrangement, is a Garratt articulated locomotive. The wheel arrangement is effectively two 4-6-2 "Pacific" locomotives operating back-to-back.
4-6-4 A 4-6-4 locomotive, in the Whyte notation for the classification of steam locomotives, has four leading wheels (generally arranged in a leading truck), six coupled driving wheels and four trailing wheels (often but not always in a trailing truck). The equivalent UIC classification is 2'C2'.
4-6-6-2 In Whyte notation, a 4-6-6-2 is a steam locomotive with four leading wheels (two axles) in an unpowered bogie at the front of the locomotive followed by two sets of driving wheels with six wheels each (three axles each), followed by two unpowered trailing wheels (one axle) at the rear of the locomotive.
4-8-0 Under the Whyte notation for the classification of steam locomotives, a 4-8-0 locomotive has four leading wheels arranged in a leading truck, eight coupled driving wheels and no trailing wheels. The type was nicknamed the Mastodon or Twelve-wheeler in North America.
4-8-2 Under the Whyte notation for the classification of steam locomotives, a 4-8-2 locomotive has four leading wheels (generally arranged in a leading truck), eight coupled driving wheels and two trailing wheels (often but not always in a trailing truck).
4-8-4 Under the Whyte notation for the classification of steam locomotives, a 4-8-4 locomotive has four leading wheels arranged in a leading truck, eight coupled driving wheels and four trailing wheels in a trailing truck.
4-8-4+4-8-4 A 4-8-4+4-8-4, in the Whyte notation for the classification of steam locomotives by wheel arrangement, is a Garratt articulated locomotive. The wheel arrangement is effectively two 4-8-4 locomotives operating back to back.
4-8-8-2 Under the Whyte notation for the classification of steam locomotives, a 4-8-8-2 is a locomotive with four leading wheels, two sets of eight driving wheels, and a two-wheel trailing truck. The equivalent UIC classification is (2'D)D1'.
4-8-8-4 In the Whyte notation for the classification of steam locomotives by wheel arrangement, a 4-8-8-4 is a locomotive with a four-wheel leading truck, two sets of eight driving wheels, and a four-wheel trailing truck.
4-Androstene-3,6,17-trione 4-Androstene-3,6,17-trione (also marketed as "6-OXO" or 4-etioallocholen-3,6,17-trione) is a drug or nutritional supplement that may increase the testosterone-estrogen ratio. Its use can be detected in urine.
4-beat 4-beat (also known as hardcore or happy hardcore) is a breakbeat style of music circa 1993, that evolved from breakbeat hardcore emanating from the United Kingdom rave scene. Due to the sheer scale of the United Kingdom rave scene, this particular music was largely self contained in England where it was almost entirely produced and played.
4-digit UNESCO Nomenclature UNESCO Nomenclature (more properly UNESCO nomenclature for fields of science and technology) is a system developed by UNESCO for classification of research papers and doctoral dissertations. There are three versions of the system, offering different levels of refinement through 2-, 4-, and 6-digit codes.
4-D film A 4-D film (or 4D) is an entertainment presentation system that combines a 3-D film with physical effects that occur in synchronization with the film. Since the physical effects are expensive to setup, 4-D films are currently only found at special venues, usually in amusement parks.
4-Dimethylaminopyridine 4-Dimethylaminopyridine (DMAP) is a nucleophilic catalyst which catalyzes a variety of reactions. For example esterifications with anhydrides, Baylis-Hillman reaction, silylation, tritylation, Steglich-Rearrangement, Staudinger synthesis of Ăź-lactams and many more.
4-H 4-H in the United States is a youth organization administered by the United States Department of Agriculture Cooperative Extension System with the mission of "engaging youth to reach their fullest potential while advancing the field of youth development." The four "H"'s stand for Heart, Head, Hands, and Health.
4-HO-DET 4-HO-DET, also known as 4-hydroxy-diethyl-tryptamine, CZ-74, or ethocin, is a hallucinogenic drug and psychedelic compound of moderate duration. 4-HO-DET is a substituted tryptamine, structurally related to psilocin and 4-HO-DIPT.
4-Hydroxybenzoic acid 4-Hydroxybenzoic acid, or p-hydroxybenzoic acid, is a phenolic derivative of benzoic acid. It a white crystalline solid that is slightly soluble in water and chloroform, but well soluble in alcohols, ether, and acetone.
4-Hydroxynonenal 4-Hydroxynonenal, or trans-4-hydroxy-2-nonenal or 4-HNE or HNE, (9162), is an α,β-unsaturated hydroxyalkenal which is produced by lipid peroxidation in cells. 4-HNE is the primary alpha,beta-unsaturated hydroxyalkenal formed in this process.
4-Hydroxyphenylpyruvate dioxygenase 4-Hydroxyphenylpyruvate dioxygenase HPD is a Cu-containing enzyme, that catalyzes the third reaction in the catabolism of phenylalanine and tyrosine - the conversion of 4-hydroxyphenylpyruvate to homogentisate.
4-Chloro-2,5-dimethoxyamphetamine 4-Chloro-2,5-dimethoxyamphetamine or 4-Chloro-2,5-DMA or DOC is a psychedelic hallucinogenic drug of the phenethylamine family. Used by some as an entheogen, DOC was presumably first synthesized by Alexander Shulgin.
4-Methoxybenzoic acid 4-Methoxybenzoic acid, or anisic acid, is an organic compound which is a carboxylic acid found naturally in anise. It is a white crystalline solid which is soluble in water, alcohols, ether, and ethyl acetate.
4-Methyl-aminorex 4-Methyl-aminorex is a stimulant drug of the 2-Amino-5-Aryloxazoline class. Commonly called "Euphoria," "U4EA,", "U4Euh", "4MA", "Intellex", "4-MAX", or "methylaminorex"; 4-Methylaminorex has also been termed "ice" due to the appearance of pure 4MA as large, white crystals, although the street name "ice" is more commonly used for pure crystalline methamphetamine.
4-Methylbenzoic acid 4-Methylbenzoic acid, also known as p-toluic acid or crithminic acid (obsolete) is a substituted benzoic acid. It is an intermediate in some industrial processes for the oxidation of p-xylene to terephthalic acid which is used in the manufacture of PET.
4-Methylbenzylidene camphor 4-Methylbenzylidene camphor, short 4-MBC, also 3-(4-Methylbenzylidene)bornan-2-one, or 3-(4-Methylbenzylidene)-dl-camphor is an organic camphor derivative that is used in the cosmetic industry for its ability to protect the skin against UV, specifically UV B radiation. As such it is used in sunscreen lotions and deodorants.
4-Nitroquinoline 1-oxide 4-nitroquinoline 1-oxide (also known as 4-NQO, 4NQO, 4Nqo and NQO) is a tumorigenic compound used in the assessment of the efficacy of diets, drugs, and procedures in the prevention and treatment of cancer in animal models.
4-Nonanoylmorpholine 4-Nonanoylmorpholine (pelargonic acid morpholide, N-nonanoylmorpholine, MPK or МПК (for морфолид пеларгоновой кислоты), or MPA) is an amide of pelargonic acid and morpholine. It is reportedly an irritating agent and a lachrymatory agent developed in Russia as an alternative to capsaicin-based pepper spray.
4-sided die Four-sided dice are often used in role-playing games, such as Dungeons & Dragons, to get small numbers for things such as damage or character statistic increases. Each die is a tetrahedron with 4 equilateral triangle-shaped faces.
4-track cartridge The 4-track cartridge or Stereo-pak is an audio storage magnetic tape cartridge technology, inspired by the Fidelipac 3-track tape cartridge system invented by George Eash in 1954 and used by radio broadcasters for commercials and jingles - since 1959, then adapted by Earl "Madman" Muntz in 1962, for use in cars as an alternative to radio.
4-year plan In the high school setting, a 4-year plan is typically the focal point of a student's academic guidance. A 4-year plan is a worksheet that outlines the classes a student will take during their 4 years of high school, and its creation is usually a joint effort between the student and guidance counselor.

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