PM
Encyclopedia
PM often means "after noon" in the 12-hour clock
(Latin Post meridiem).
PM or Pm may also refer to:
12-hour clock
The 12-hour clock is a time conversion convention in which the 24 hours of the day are divided into two periods called ante meridiem and post meridiem...
(Latin Post meridiem).
PM or Pm may also refer to:
Sciences
- Particulate matter, particulates — fine dust and soot — suspended in the air
- PM10, particulates, smaller than 10 μm, that can cause health problems
- PM3 (chemistry)PM3 (chemistry)PM3, or Parameterized Model number 3, is a semi-empirical method for the quantum calculation of molecular electronic structure in computational chemistry. It is based on the Neglect of Differential Diatomic Overlap integral approximation....
, or Parameterized Model number 3 - a modelling method in computational chemistry - Permanent magnet, an object which stays magnetised without external effort or mason.
- Perpetual motionPerpetual motionPerpetual motion describes hypothetical machines that operate or produce useful work indefinitely and, more generally, hypothetical machines that produce more work or energy than they consume, whether they might operate indefinitely or not....
, refers to movement that goes on forever - Petameter, a length unit (1015 m) (Pm)
- Phase modulationPhase modulationPhase modulation is a form of modulation that represents information as variations in the instantaneous phase of a carrier wave.Unlike its more popular counterpart, frequency modulation , PM is not very widely used for radio transmissions...
, in electrical engineering - PM tube, Photomultiplier tube.
- PicometrePicometreA picometre is a unit of length in the metric system, equal to one trillionth, i.e. of a metre, which is the current SI base unit of length...
, a length unit (10−12 m) (pm) - Plasma membrane, is a selectively permeable lipid bilayer found in all cells
- Powdery mildewPowdery mildewPowdery mildew is a fungal disease that affects a wide range of plants. Powdery mildew diseases are caused by many different species of fungi in the order Erysiphales. It is one of the easier diseases to spot, as its symptoms are quite distinctive. Infected plants display white powdery spots on the...
, a fungal disease that affects a wide range of plants - Powder metallurgyPowder metallurgyPowder metallurgy is the process of blending fine powdered materials, pressing them into a desired shape , and then heating the compressed material in a controlled atmosphere to bond the material . The powder metallurgy process generally consists of four basic steps: powder manufacture, powder...
, a method of fabricating metals. - PremolarPremolarThe premolar teeth or bicuspids are transitional teeth located between the canine and molar teeth. In humans, there are two premolars per quadrant, making eight premolars total in the mouth. They have at least two cusps. Premolars can be considered as a 'transitional tooth' during chewing, or...
tooth, dental nomenclature - PromethiumPromethiumPromethium is a chemical element with the symbol Pm and atomic number 61. It is notable for being the only exclusively radioactive element besides technetium that is followed by chemical elements with stable isotopes.- Prediction :...
, chemical element number 61 (Pm) - PolymyositisPolymyositisPolymyositis is a type of chronic inflammation of the muscles related to dermatomyositis and inclusion body myositis.-Signs and symptoms:...
, disease - Post mortem, a medical examination carried out after death
- Principia MathematicaPrincipia MathematicaThe Principia Mathematica is a three-volume work on the foundations of mathematics, written by Alfred North Whitehead and Bertrand Russell and published in 1910, 1912, and 1913...
, a three-volume work on the foundations of mathematics - Polarization-maintaining optical fiberPolarization-maintaining optical fiberIn fiber optics, polarization-maintaining optical fiber is optical fiber in which the polarization of linearly polarized light waves launched into the fiber is maintained during propagation, with little or no cross-coupling of optical power between the polarization modes...
- Participatory medicineParticipatory MedicineThe Society for Participatory Medicine defines Participatory Medicine as a movement in which networked patients shift from being mere passengers to responsible drivers of their health, and in which providers encourage and value them as full partners....
, a new model of medicine
People
- P.M. (author)P.M. (author)The pseudonym P.M. is used by an otherwise anonymous Swiss author , best known for his 1983 anarchist / anti-capitalist social utopian book bolo'bolo, published with the paranoia city verlag of Zürich.-bolo'bolo:The title of this book refers to the...
, an anonymous Swiss author - P. M. Aboobacker, Indian Muslim political leader in Kerala
- P. M. Blau (1918–2002), American sociologist and theorist; see Peter BlauPeter BlauPeter Michael Blau was an American sociologist and theorist. Born in Vienna, Austria, he immigrated to the United States in 1939. He received his PhD at Columbia University in 1952, and was an instructor at Wayne State University in Detroit, Michigan from 1949–1951, before moving on to teach...
- P. M. Cohn (1924–2006), German-born British mathematician; Paul CohnPaul CohnPaul Moritz Cohn FRS was Astor Professor of Mathematics at University College London, 1986-9, and author of many textbooks on algebra...
- P.M. Daka, Zambian member of Pan-African Parliament; see Peter DakaPeter DakaPeter M. Daka is a member of the Pan-African Parliament from Zambia. During the Third Ordinary Session of The Pan-African Parliament, Hon. Daka proposed the creation of a Pan-African Parliament Trust Fund.-External links:*...
- P. M. Henry (1849–1903), or Prosper Henry, French optician and astronomer; see Paul Henry and Prosper HenryPaul Henry and Prosper HenryPaul-Pierre Henry and his brother Mathieu-Prosper Henry were French opticians and astronomers....
- P. M. HubbardP. M. HubbardPhilip Maitland Hubbard was a British writer. He was known principally for his crime and suspense stories although he wrote in other forms and genres as well, for example contributing short stories and poetry to The Magazine of Fantasy and Science Fiction and articles, verse and parliamentary...
(1910–1980), British writer - P. M. Kilmartin, New Zealand astronomer; see Pamela M. KilmartinPamela M. KilmartinPamela M. Kilmartin is a New Zealand astronomer.She has discovered some forty asteroids, each one in collaboration with Alan C. Gilmore; both of them are also active comet-hunters.She is a Fellow of the Royal Astronomical Society of New Zealand ....
- P.M. McCullough (1893–1981), American actor; see Philo McCulloughPhilo McCulloughPhilo McCullough was an American actor. He appeared in 255 films between 1914 and 1969.He was born in San Bernardino, California and died in Burbank, California.-Selected filmography:* Heroes of the West...
- P. M. PasinettiP. M. PasinettiPier Maria Pasinetti was a novelist, professor and journalist.P. M. Pasinetti went to the U.S. in 1935 to study literature and writing...
(1913–2006), Italian novelist, professor and journalist - P. M. Pu (1910–1988), Chinese mathematician; see Pao Ming PuPao Ming PuPao Ming Pu Pao Ming Pu Pao Ming Pu (the form of his name he used in Western languages, although the Wade-Giles transliteration would be Pu Baoming; ; Aug. 1910– Feb...
- P. M. RadhakrishnanP. M. RadhakrishnanP. M. Radhakrishnan was an Indian football player, coach, referee and administrator. As a player he participated in many tournaments, including representing Tamilnadu in the Senior National Championship for the Santhosh Trophy, in 1973.After a knee injury ended his playing career, he completed the...
(1946–2010), Indian football player, coach, referee and administrator - P. M. SayeedP. M. SayeedPadanatha Mohammed Sayeed was a leader of the Indian National Congress party. He was a member of Lok Sabha for ten terms, representing Lakshadweep.-Early life:...
(1941–2005), Indian politician, representing Lakshadweep - P. M. ThangavelrajP. M. ThangavelrajP. M. Thangavelraj is an Indian politician and former Member of the Legislative Assembly of Tamil Nadu. He was elected to the Tamil Nadu legislative assembly from Krishnarayapuram constituency as an Indian National Congress candidate in 1980 election and as an Anna Dravida Munnetra Kazhagam...
, Indian politician, former Member of the Legislative Assembly of Tamil Nadu
Computing and Internet
- Pac-ManPac-Manis an arcade game developed by Namco and licensed for distribution in the United States by Midway, first released in Japan on May 22, 1980. Immensely popular from its original release to the present day, Pac-Man is considered one of the classics of the medium, virtually synonymous with video games,...
, character, video game, and TV series - Paper MarioPaper MarioPaper Mario, known in Japan as , is a role-playing video game developed by Intelligent Systems and published by Nintendo for the Nintendo 64 game console. It was first released in Japan on August 11, 2000, in North America on February 5, 2001, and in Europe and Australia on October 5, 2001...
, game for Nintendo 64 - Particle MeshParticle MeshParticle Mesh is a computational method for determining the forces in a system of particles. These particles could be atoms, stars, or fluid components and so the method is applicable to many fields, including molecular dynamics and astrophysics. The basic principle is that a system of particles...
, an algorithm for calculating the potential of a system (used in computational physics). - Perl modulePerl moduleA Perl module is a discrete component of software for the Perl programming language. Technically, it is a particular set of conventions for using Perl's package mechanism that has become universally adopted....
, a discrete component of software for the Perl programming language. (file extension .pm) - Perl mongersPerl MongersPerl Mongers is part of The Perl Foundation and provides services to user groups for the Perl programming language.Perl Mongers was created in 1998 as a stand-alone organization by brian d foy who formed the first Perl users group, the New York Perl Mongers, or NY.pm, in 1997 at the First O'Reilly...
- groups of local Perl enthusiasts. - Personal messagePersonal messageA personal message or private message, often shortened to PM, is like an e-mail sent from one user to another user on an Internet forum, bulletin board system, social networking site , or chat room ....
or private message, a type of e-mail within community sites or chat between two people.
Business
- P.M. Place StoresP.M. Place StoresP.M. Place Stores, also known as Place's Discount Stores was a Bethany, Missouri-based, employee-owned chain of discount stores in the United States. The company primarily operated in towns with a population of 1,500 to 4,000 people in Illinois, Iowa, Kansas, and Missouri.-Origins:P.M. Place...
, a former US chain of discount stores - Philip Morris USAPhilip Morris USAPhilip Morris USA is the United States tobacco division of Altria Group, Inc. Philip Morris USA brands include Marlboro, Virginia Slims, Benson and Hedges, Merit, Parliament, Alpine, Basic, Cambridge, Bucks, Dave's, Chesterfield, Collector's Choice, Commander, English Ovals, Lark, L&M, Players and...
, abbreviated as PM USA, American company - Pobjoy MintPobjoy MintThe Pobjoy Mint is Europe’s leading private mint which produces legal tender commemorative and circulating coins, medals and tokens for governments, central banks and major companies throughout the world from its premises in Surrey, England.-History:...
, a European mint, via its mint mark PM - IATA airline designator for Tropic AirTropic AirFounded in 1979 by John Greif III with just a single airplane and two employees, Tropic has steadilygrown to become the largest and most experienced airline in Belize...
- Program managementProgram managementProgram management or programme management is the process of managing several related projects, often with the intention of improving an organization's performance...
- Product managementProduct managementProduct management is an organizational lifecycle function within a company dealing with the planning, forecasting, or marketing of a product or products at all stages of the product lifecycle....
Media
- 3pm3pm3pm is a New Zealand children's show hosted by Suzy Cato. It screened on the independent station TV3 in 1992, and featured an oversized pumpkin, games, interviews, viewers' mail and cartoons. The show was produced by the television company Kids' TV Ltd....
, a former New Zealand children's TV programme - PM (ABC Radio)PM (ABC Radio)PM is one of the Australian Broadcasting Corporation's flagship current-affairs radio programs, and is one of Australia's longest-running productions. It is the sister program to AM...
, an Australian radio news programme - PM (Radio 4)PM (Radio 4)PM, sometimes referred to as the PM programme to avoid ambiguity, is BBC Radio 4's long-running early evening news and current affairs programme.-Broadcast times:...
, a British radio news programme - PM (newspaper)PM (newspaper)PM was a leftist New York City daily newspaper published by Ralph Ingersoll from June 1940 to June 1948 and bankrolled by the eccentric Chicago millionaire Marshall Field III....
, a 1940s U.S. newspaper - PM MagazinePM MagazinePM/Evening Magazine was a television series with a news and entertainment format. It was syndicated to stations throughout the United States...
, an American TV news programme (1976–1991)
Transport
- Martin PM, a version of the Naval Aircraft Factory PNNaval Aircraft Factory PNThe Naval Aircraft Factory PN was a series of open cockpit American flying boats of the 1920s and 1930s. A development of the Felixstowe F5L flying boat of the First World War, variants of the PN were built for the United States Navy by Douglas, Keystone Aircraft and Martin.-Development and...
flying boat - Paris MétroParis MétroThe Paris Métro or Métropolitain is the rapid transit metro system in Paris, France. It has become a symbol of the city, noted for its density within the city limits and its uniform architecture influenced by Art Nouveau. The network's sixteen lines are mostly underground and run to 214 km ...
- Pere Marquette RailwayPere Marquette RailwayThe Pere Marquette Railway was a railroad that operated in the Great Lakes region of the United States and Canada. The railroad had trackage in the states of Michigan, Ohio, Indiana and the Canadian province of Ontario. Its primary connections included Buffalo; Toledo; and Chicago.The company was...
- Toyota PM, a concept car
Weapons
- PM-38PM-38The PM-38 was a Soviet 50 mm light infantry mortar, developed as a variant of the M1938 120 mm mortar. The barrel was clamped at two elevation angles only - 45 and 75 degrees. Range variations were made by altering a sleeve round the base of the barrel...
, Soviet light mortar - PM-43PM-43 and PM-68 mineThe PM-43 and PM-68 are Finnish anti-personnel fragmentation mines.The PM-43 has a long cylindrical steel body, with heavy fragmentation grooves. It has been used with variety of fuzes including the Model 43, VS-70, and US-65 currently it is used with the VS-86 tripwire fuze...
, Finnish anti-personnel mine - PM-63 RAKPM-63 RakThe PM-63 RAK is a Polish 9mm submachine gun, designed by Piotr Wilniewczyc in cooperation with Tadeusz Bednarski, Grzegorz Czubak and Marian Wakalski...
, Polish submachine gun - PM-60PM-60 mineThe PM-60 or K-1 is a German round plastic cased minimum metal anti-tank blast mine. The case of the mine consists of two halves joined together by sixteen plastic nuts, giving the mine a distinctive appearance. The top of the mine has a large pressure plate which rests on top of the fuze assembly...
, East German anti-tank mine - PM-68PM-43 and PM-68 mineThe PM-43 and PM-68 are Finnish anti-personnel fragmentation mines.The PM-43 has a long cylindrical steel body, with heavy fragmentation grooves. It has been used with variety of fuzes including the Model 43, VS-70, and US-65 currently it is used with the VS-86 tripwire fuze...
, Finnish anti-personnel mine - PM-79PM-79 mineThe PM-79 is a small circular Bulgarian blast resistant anti-personnel mine, superficially similar to the Russian PMN. The mine uses a unique trigger design; on the top of the mine, beneath a thin rubber cover is a dish shaped pressure plate. Pressure on the outer rim of the dish shaped plate...
, Bulgarian anti-personnel mine - PM-84 GlauberytPM-84 GlauberytThe PM-84 Glauberyt is a Polish submachine gun. It is a personal weapon intended for combat and self-defense at ranges up to 150 m with single shot or fully automatic fire mode. It features compact design, minimum overall dimensions, small weight, very good accuracy, and fire stability...
, Polish submachine gun - PM md 96, Romanian submachine gun
- Makarov PMMakarov PMThe PM is a semi-automatic pistol design. Under the project leadership of Nikolay Fyodorovich Makarov, it became the Soviet Union's standard military side arm from 1951-1991.-Development:...
(Pistolet Makarova), a 1940s, Soviet pistol - Minebea PM-9Minebea PM-9The Minebea PM-9 Submachine Gun, known officially in the Japan Self-Defense Forces as the or as the M9, is a Japanese-made machine pistol...
, Japanese submachine gun
Music
- 2PM2PM2PM is a South Korean boy band, originally a seven-member group, but currently consisting of six members due to the sudden contract termination of leader Jaebeom following an Internet controversy in September 2009. They are managed by JYP Entertainment...
, a seven-member boy band from South Korea - 4 P.M.4 P.M.4 P.M. , is an American male R&B group best known for their cover version of "Sukiyaki", which peaked at number 8 on the US Billboard Hot 100 in February 1995....
, an American male R&B group - Palm mutePalm muteThe palm mute is a playing technique for guitar and bass guitar executed by placing the side of the picking hand below the little finger across all of the strings very close to the bridge and then plucking the strings with the fingers while the damping is in effect. This produces a muted sound...
, a playing technique for the guitar or bass guitar - Penn MasalaPenn MasalaPenn Masala is the world's first and premier Hindi a cappella group, formed in 1996 by students at the University of Pennsylvania. Penn Masala’s music has been influenced by the Eastern and Western cultures that represent the group’s membership...
, a Hindi a cappella group from the University of Pennsylvania, USA - P.M. Dawn, American hip-hop act
- Power MetalPower metalPower metal is a style of heavy metal combining characteristics of traditional metal with speed metal, often within symphonic context. The term refers to two different but related styles: the first pioneered and largely practiced in North America with a harder sound similar to speed metal, and a...
, a sub-genre of heavy metal music.
Other
- PM-1, American nuclear reactor.
- Prime ministerPrime ministerA prime minister is the most senior minister of cabinet in the executive branch of government in a parliamentary system. In many systems, the prime minister selects and may dismiss other members of the cabinet, and allocates posts to members within the government. In most systems, the prime...
, the most senior minister of a cabinet - Preventive maintenancePreventive maintenancePreventive maintenance has the following meanings:#The care and servicing by personnel for the purpose of maintaining equipment and facilities in satisfactory operating condition by providing for systematic inspection, detection, and correction of incipient failures either before they occur or...
, a job for fault prevention during machine executes before occurring some problems. - Pontifex MaximusPontifex MaximusThe Pontifex Maximus was the high priest of the College of Pontiffs in ancient Rome. This was the most important position in the ancient Roman religion, open only to patricians until 254 BC, when a plebeian first occupied this post...
, the high priest of the Ancient Roman College of Pontiffs - PostmasterPostmasterA postmaster is the head of an individual post office. Postmistress is not used anymore in the United States, as the "master" component of the word refers to a person of authority and has no gender quality...
, the head of an individual post office - Palace Museum, a large art museum housed in the Forbidden City in Beijing
- Polar MedalPolar MedalThe Polar Medal is a medal awarded by the Sovereign of the United Kingdom. It was instituted in 1857 as the Arctic Medal and renamed the Polar Medal in 1904.-History:...
, a medal awarded by the Sovereign of the United Kingdom - Saint Pierre and Miquelon: ISO 3166-1 alpha-2 country code
- .pm.pm.pm is the Internet country code top-level domain for Saint Pierre and Miquelon. This top-level domain is managed by the AFNIC but the registration services are currently suspended.- External links :* *...
, the country code top level domain (ccTLD) for Saint Pierre and Miquelon
- .pm
- Performance managementPerformance managementPerformance management includes activities that ensure that goals are consistently being met in an effective and efficient manner. Performance management can focus on the performance of an organization, a department, employee, or even the processes to build a product or service, as well as many...
: activities to ensure that goals are consistently being met in an effective and efficient manner.