ST, St, or St. may refer to:

Arts and entertainment

Stanza In poetry, a stanza (; from Italian ''stanza'', ; ) is a group of lines within a poem, usually set off from others by a blank line or indentation. Stanzas can have regular rhyme and metrical schemes, but they are not required to have either. ...

, in poetry *

Suicidal Tendencies Suicidal Tendencies is an American crossover thrash band formed in 1980 in Venice, California, by vocalist Mike Muir. The band has undergone various lineup changes, with Muir as the only remaining original member. Their current lineup includes ...

, an American heavy metal/hardcore punk band * ''

Star Trek ''Star Trek'' is an American science fiction media franchise created by Gene Roddenberry, which began with the Star Trek: The Original Series, series of the same name and became a worldwide Popular culture, pop-culture Cultural influence of ...

'', a science-fiction media franchise *

Summa Theologica The ''Summa Theologiae'' or ''Summa Theologica'' (), often referred to simply as the ''Summa'', is the best-known work of Thomas Aquinas (1225–1274), a scholastic theologian and Doctor of the Church. It is a compendium of all of the main t ...

, a compendium of Catholic philosophy and theology by St. Thomas Aquinas * St or St., abbreviation of "State", especially in the name of a college or university

Businesses and organizations

Transportation

Germania (airline) Germania Fluggesellschaft mbH, trading as Germania (), wasflgermania.com
retrieved 5 February 2019

(IATA airline designator ST) *

Maharashtra State Road Transport Corporation The Maharashtra State Road Transport Corporation abbreviated as (MSRTC, or simply ST), is the state-run bus service of Maharashtra, India, which serves routes to towns and cities within Maharashtra as well as to its adjoining states. It also of ...

, abbreviated as State Transport *

Sound Transit Sound Transit (ST), officially the Central Puget Sound Regional Transit Authority, is a public transit agency serving the Seattle metropolitan area in the U.S. state of Washington (state), Washington. It manages the Link light rail system in Se ...

, Central Puget Sound Regional Transit Authority, Washington state, US *

Springfield Terminal Railway (Vermont) The Springfield Electric Railway, affectionately referred to as the Toonerville Trolley, was an electric trolley system that operated in the town of Springfield, Vermont. The railway, which later became the Springfield Terminal Railway, was ini ...

(railroad reporting mark ST) *

Suffolk County Transit Suffolk County Transit is the provider of bus services in Suffolk County, New York, on Long Island and is an agency of the Suffolk County government. It was founded in 1980 as a county-run oversight and funding agency for a group of private con ...

, or Suffolk Transit, the bus system serving Suffolk County, New York

Other businesses and organizations

* Statstjänstemannaförbundet, or Swedish Union of Civil Servants, a trade union *

STMicroelectronics STMicroelectronics Naamloze vennootschap, NV (commonly referred to as ST or STMicro) is a European multinational corporation, multinational semiconductor contract manufacturing and design company. It is the largest of such companies in Europe. ...

, a worldwide manufacturer of semiconductors

Geography

São Tomé and Príncipe São Tomé and Príncipe, officially the Democratic Republic of São Tomé and Príncipe, is an island country in the Gulf of Guinea, off the western equatorial coast of Central Africa. It consists of two archipelagos around the two main isla ...

(ISO 3166-1 country code ST) ** .st, Internet country code top-level domain for São Tomé and Príncipe *

Saxony-Anhalt Saxony-Anhalt ( ; ) is a States of Germany, state of Germany, bordering the states of Brandenburg, Saxony, Thuringia and Lower Saxony. It covers an area of and has a population of 2.17 million inhabitants, making it the List of German states ...

, a state of Germany *

Split, Croatia Split (, ), historically known as Spalato (; ; see #Name, other names), is the List of cities and towns in Croatia, second-largest city of Croatia after the capital Zagreb, the largest city in Dalmatia and the largest city on the Croatian coast ...

(vehicle plate code ST) * Stoke-on-Trent postcode area, United Kingdom * St or St., abbreviation of

Saint In Christianity, Christian belief, a saint is a person who is recognized as having an exceptional degree of sanctification in Christianity, holiness, imitation of God, likeness, or closeness to God in Christianity, God. However, the use of the ...

* St or St., abbreviation of

Street A street is a public thoroughfare in a city, town or village, typically lined with Building, buildings on one or both sides. Streets often include pavements (sidewalks), pedestrian crossings, and sometimes amenities like Street light, streetligh ...

* St or St., abbreviation of

Strait A strait is a water body connecting two seas or water basins. The surface water is, for the most part, at the same elevation on both sides and flows through the strait in both directions, even though the topography generally constricts the ...

Language and typography

Sesotho language Sotho (), also known as ''Sesotho'' (), Southern Sotho, or ''Sesotho sa Borwa'' is a Southern Bantu language spoken in Lesotho as its national language and South Africa where it is an official language. Like all Bantu languages, Sesotho is ...

(ISO 639-1 language code "st") * ﬅ, or st, a typographic ligature * Standard Theory in

generative grammar Generative grammar is a research tradition in linguistics that aims to explain the cognitive basis of language by formulating and testing explicit models of humans' subconscious grammatical knowledge. Generative linguists, or generativists (), ...

Science and technology

Computing

* ST connector, a type of optical fiber connector *

Atari ST Atari ST is a line of personal computers from Atari Corporation and the successor to the company's Atari 8-bit computers, 8-bit computers. The initial model, the Atari 520ST, had limited release in April–June 1985, and was widely available i ...

, a personal computer * Prefix of hard disk drives made by

Seagate Technology Seagate Technology Holdings plc is an American Computer data storage, data storage company. It was incorporated in 1978 as Shugart Technology and commenced business in 1979. Since 2010, the company has been incorporated in Dublin, Ireland, with ...

, e.g. ST-506 *

Internet Stream Protocol The Internet Stream Protocol (ST) is a family of experimental protocols first defined in Internet Experiment Note IEN-119 in 1979, and later substantially revised in RFC 1190 (ST-II) and RFC 1819 (ST2+). The protocol uses the version number 5 in ...

, an experimental Internet protocol *

Structured text Structured text, abbreviated as ST or STX, is one of the five languages supported by the IEC 61131-3 standard, designed for programmable logic controller A programmable logic controller (PLC) or programmable controller is an industrial comp ...

, a high-level programming language that syntactically resembles Pascal and is designed for programmable logic controllers (PLC) * .st, the Internet country code top-level domain (ccTLD) for São Tomé and Príncipe * St (terminal emulator), minimalist terminal emulator by suckless.org

Mathematics

Standard part function In nonstandard analysis, the standard part function is a function from the limited (finite) hyperreal numbers to the real numbers. Briefly, the standard part function "rounds off" a finite hyperreal to the nearest real. It associates to every suc ...

, a term used in non-standard analysis

Physics

Stanton number The Stanton number (), is a dimensionless number that measures the ratio of heat transferred into a fluid to the thermal capacity of fluid. The Stanton number is named after Thomas Stanton (engineer) (1865–1931). It is used to characterize hea ...

St, used in physics *

Strouhal number In dimensional analysis, the Strouhal number (St, or sometimes Sr to avoid the conflict with the Stanton number) is a dimensionless number describing oscillating flow mechanisms. The parameter is named after Vincenc Strouhal, a Czech physicist w ...

St, used in fluid mechanics *

String theory In physics, string theory is a theoretical framework in which the point-like particles of particle physics are replaced by one-dimensional objects called strings. String theory describes how these strings propagate through space and intera ...

Units of measurement

Stokes (unit) Viscosity is a measure of a fluid's rate-dependent resistance to a change in shape or to movement of its neighboring portions relative to one another. For liquids, it corresponds to the informal concept of ''thickness''; for example, syrup h ...

(St), a CGS unit of kinematic viscosity *

Stone (weight) The stone or stone weight (abbreviation: st.) is an English and British imperial unit of mass equal to 14 avoirdupois pounds (6.35 kg). The stone continues in customary use in the United Kingdom and Ireland for body weight. England and ...

(st.), a unit of mass used in the British Isles and other countries

Medicine

ST segment In electrocardiography, the ST segment connects the QRS complex and the T wave and has a duration of 0.005 to 0.150 sec (5 to 150 ms). It starts at the J point (junction between the QRS complex and ST segment) and ends at the beginning of the T ...

, the part of an electrocardiogram connecting the QRS complex and the T wave *

Sulfotransferase In biochemistry, sulfotransferases (SULTs) are transferase enzymes that catalyze the transfer of a sulfo group () from a donor molecule to an acceptor alcohol () or amine (). The most common sulfo group donor is 3'-phosphoadenosine-5'-phosphos ...

, enzymes that catalyze the transfer of a sulfo group *

Heat-stable enterotoxin Heat-stable enterotoxins (STs) are secretory peptides produced by some bacterial strains, such as enterotoxigenic Escherichia coli, enterotoxigenic ''Escherichia coli'' which are in general toxic to animals. These peptides keep their 3D struct ...

, secretory peptides produced by some bacterial strains, such as enterotoxigenic ''Escherichia coli''

Other uses

* -st, a suffix for an

ordinal number In set theory, an ordinal number, or ordinal, is a generalization of ordinal numerals (first, second, th, etc.) aimed to extend enumeration to infinite sets. A finite set can be enumerated by successively labeling each element with the leas ...

, such as 1 or 21 *

(St or St.), especially in Christianity * Scheduled Tribes, in India *

Ship prefix A ship prefix is a combination of letters, usually abbreviations, used in front of the name of a civilian or naval ship that has historically served numerous purposes, such as identifying the vessel's mode of propulsion, purpose, or ownership/na ...

for a steam tug * Sine tempore (s.t.), Latin term indicating that a lecture will begin at the exact time; see Academic quarter (class timing) *

Striker (association football) In the sport of association football, a forward (attacker or striker) is an outfield position which primarily plays further up the pitch than midfielders and defenders. As with any attacking player, the role of the forward relies heavily on be ...

, a position in association football * ST, a type of

London bus Buses have been used as a mode of public transport in London since 1829, when George Shillibeer started operating a horse-drawn ''omnibus'' service from Paddington to the City of London. In the decades since their introduction, the red London ...

* ST, a court-ordered pseudonym used during a British court case; see Sudiksha Thirumalesh case