''Science Reporter'' is a monthly popular science magazine that has been published in India since 1964["Sr."'', a 2022 film featuring Roberts Downey Jr. and Sr.
]
Businesses and organizations
Politics
* Socialist Revolutionary Party
The Socialist Revolutionary Party (SR; ,, ) was a major socialist political party in the late Russian Empire, during both phases of the Russian Revolution, and in early Russian Soviet Federative Socialist Republic, Soviet Russia. The party memb ...
, Russia, 1902–1941
* A Just Russia
A, or a, is the first letter and the first vowel letter of the Latin alphabet, used in the modern English alphabet, and others worldwide. Its name in English is '' a'' (pronounced ), plural ''aes''.
It is similar in shape to the Ancient ...
(''Spravedlivaya Rossiya''), a political party formed in 2006
Transport
* Southern Railway (UK)
The Southern Railway (SR), sometimes shortened to 'Southern', was a British railway company established in the Railways Act 1921, 1923 Grouping. It linked London with the English Channel, Channel ports, South West England, Seaside resort#Briti ...
* Southern Railway (U.S.)
The Southern Railway (also known as Southern Railway Company; ) was a class 1 railroad based in the Southern United States between 1894 and 1982, at which time it merged with the Norfolk and Western Railway (N&W) to form the Norfolk Southern R ...
* Swissair
Swissair (German language, German: Schweizerische Luftverkehr-AG; French language, French: S.A. Suisse pour la Navigation Aérienne, stylised as swissair) was the Flag carrier, national airline of Switzerland between its founding in 1931 and ban ...
(IATA airline code SR)
* Southern Railway zone
Southern Railway (SR) is one of the eighteen zones of Indian Railways. It is headquartered at Chennai and operates across the states of Tamil Nadu, Kerala, Andhra Pradesh and the union territory of Puducherry. The origin of the Southern Rai ...
, India
* SR Corporation
SR Corporation (, formerly ''Suseo High Speed Rail Corporation''), also known as Supreme Railways, is a South Korean rail operator that operates high-speed rail services.
The company was established in December 2013 and adopted its current name ...
, a South Korean rail operator
Other businesses and organizations
* Sørvágs Róðrarfelag, a Faroese rowing association
* Saarländischer Rundfunk
(; "Saarland Broadcasting"), shortened to SR (), is a public broadcasting, public radio and television broadcaster serving the German States of Germany, state of Saarland. With headquarters in the Halberg Broadcasting House in Saarbrücken, SR i ...
, a German broadcaster
* Sveriges Radio
Sveriges Radio Aktiebolag, AB (; "Sweden's Radio") is Sweden's national publicly funded radio programming, radio broadcaster. Sveriges Radio is a public limited company, owned by an independent foundation, previously funded through a television ...
, a Swedish broadcaster
Honorifics
* Senior (Sr.), a generational title suffix
In linguistics, a suffix is an affix which is placed after the stem of a word. Common examples are case endings, which indicate the grammatical case of nouns and adjectives, and verb endings, which form the conjugation of verbs. Suffixes can ca ...
to a man's name
* Religious sister
A religious sister (abbreviated: Sr.) in the Catholic Church is a woman who has taken public vows in a religious institute dedicated to apostolic works, as distinguished from a nun who lives a cloistered monastic life dedicated to prayer and ...
(Sr.), in Catholicism
Places
* Slovak Republic
Slovakia, officially the Slovak Republic, is a landlocked country in Central Europe. It is bordered by Poland to the north, Ukraine to the east, Hungary to the south, Austria to the west, and the Czech Republic to the northwest. Slovakia's ...
(), the official name of Slovakia
* Suriname
Suriname, officially the Republic of Suriname, is a country in northern South America, also considered as part of the Caribbean and the West Indies. It is a developing country with a Human Development Index, high level of human development; i ...
(ISO 3166-1 country code SR)
* West Sulawesi
West Sulawesi (), covering a land area of 17,152.99 km2 with its capital at Mamuju, is a province of Indonesia on the western side of Sulawesi (formerly Celebes) island, consisting 6 regencies ('' kabupaten''), namely Polewali Mandar, Ma ...
(ISO 3166-2:ID province code SR), a province of Indonesia
Science and technology
Biology and medicine
* SR protein
SR proteins are a conserved family of proteins involved in RNA splicing. SR proteins are named because they contain a protein domain with long repeats of serine and arginine amino acid residue (chemistry), residues, whose Amino acid#Table of stand ...
, involved in RNA splicing
* Sarcoplasmic reticulum
The sarcoplasmic reticulum (SR) is a membrane-bound structure found within muscle cells that is similar to the smooth endoplasmic reticulum in other cells. The main function of the SR is to store calcium ions (Ca2+). Calcium ion levels are kep ...
, a structure found within muscle cells
* Sustained release
Modified-release dosage is a mechanism that (in contrast to immediate-release dosage) delivers a drug with a delay after its administration (delayed-release dosage) or for a prolonged period of time (extended-release R, XR, XLdosage) or to a spe ...
, in medicine
Chemistry and physics
* Steradian
The steradian (symbol: sr) or square radian is the unit of solid angle in the International System of Units (SI). It is used in three-dimensional geometry, and is analogous to the radian, which quantifies planar angles. A solid angle in the fo ...
(symbol: sr), the SI unit of solid angle
* Strontium
Strontium is a chemical element; it has symbol Sr and atomic number 38. An alkaline earth metal, it is a soft silver-white yellowish metallic element that is highly chemically reactive. The metal forms a dark oxide layer when it is exposed to ...
(symbol: Sr), a chemical element
Computing and electronics
* .sr, the Internet top-level domain for Suriname
* SR flip-flop circuit
In electronics, flip-flops and latches are circuits that have two stable states that can store state information – a bistable multivibrator. The circuit can be made to change state by signals applied to one or more control inputs and will ou ...
, an electronic logic device
* SR programming language SR (short for Synchronizing Resources) is a programming language designed for concurrent programming.
''Resources'' encapsulate processes and the variables they share, and can be separately compiled. ''Operations'' provide the primary mechanism fo ...
* Segment routing
Segment routing, a form of computer networking, is a modern variant of source routing that is being developed within thSPRINGand IPv6 working groups of the IETF. In a segment routed network, an ingress node may prepend a header to packets that ...
, a form of computer networking
* Slew rate
In electronics and electromagnetics, slew rate is defined as the change of voltage or current, or any other electrical or electromagnetic quantity, per unit of time. Expressed in SI units, the unit of measurement is given as the change per seco ...
, the maximum rate of change of electrical signals
* Sound reinforcement
A sound reinforcement system is the combination of microphones, signal processors, amplifiers, and loudspeakers in enclosures all controlled by a mixing console that makes live or pre-recorded sounds louder and may also distribute those sou ...
, a system to make sounds louder
* Student Robotics
Student Robotics is a registered charity that runs an annual robotics competition for teams of 16 to 19 year-olds. The charity aims to foster a world where engineering and artificial intelligence is accessible to young people with a stated mission ...
, a robot-building competition
* Surround Right (SR), a speaker on a 5.1 surround sound
5.1 surround sound ("five-point one") is the common name for surround sound audio systems. 5.1 is the most commonly used layout in home theatres. It uses five full-bandwidth channels and one low-frequency effects channel (the "point one"). Dolb ...
setup
Transport
* Codename of the 1992 to 2002 Dodge Viper
The Dodge Viper is a sports car that was manufactured by Dodge (by Street & Racing Technology, SRT for 2013 and 2014), a division of American car manufacturer Chrysler from 1992 until 2017, having taken a brief hiatus in 2007 and from 2011 to 20 ...
* Nissan SR engine
The SR engine is a series of , or Inline-four engine, straight-four, four-stroke engine, four-stroke gasoline internal combustion engine, engines manufactured by Nissan Motors, Nissan. It has an aluminium head and block with steel Cylinder (eng ...
* Manx SR and SR2, 1970 US kit cars
* State Route
A state highway, state road, or state route (and the equivalent provincial highway, provincial road, or provincial route) is usually a road that is either Route number, numbered or maintained by a sub-national state or province. A road numbered ...
* Rockaway Park Shuttle in New York City, sometimes signed in documents as SR
Other uses
* Strike rate
Strike rate refers to two different cricket statistics, statistics in the sport of cricket. Batting strike rate is a measure of how quickly a batsman, batter achieves the primary goal of batting (cricket), batting, namely scoring run (cricket), r ...
(s/r), a statistic in cricket
* Saudi riyal (currency symbol: SR), the currency of Saudi Arabia
* Serbian language
Serbian (, ) is the standard language, standardized Variety (linguistics)#Standard varieties, variety of the Serbo-Croatian language mainly used by Serbs. It is the official and national language of Serbia, one of the three official languages of ...
(ISO-639-1 language code: sr)
* Slot receiver
A wide receiver (WR), also referred to as a wideout, and historically known as a split end (SE) or flanker (FL), is an eligible receiver in gridiron football. A key skill position of the offense, WR gets its name from the player being split ...
, a position in American football
* Special reconnaissance
Special reconnaissance (SR) is conducted by small units, such as a recon team, made up of highly trained military personnel, usually from special forces units and/or military intelligence organizations. Special reconnaissance teams operate behind ...
, a military tactic
** United States Air Force Special Reconnaissance
See also
*
* SR-25
The SR-25 (Stoner Rifle-25) is a designated marksman rifle and semi-automatic sniper rifle designed by Eugene Stoner and manufactured by Knight's Armament Company.
The SR-25 uses a rotating bolt and a Stoner bolt and carrier piston gas syste ...
, a rifle
* Lockheed SR-71 Blackbird
The Lockheed SR-71 "Blackbird" is a retired long-range, high-altitude, Mach 3+ strategic reconnaissance aircraft developed and manufactured by the American aerospace company Lockheed Corporation. Its nicknames include " Blackbird" and ...
, an aircraft
* Cirrus SR20
The Cirrus SR20 is an American piston-engined, four- or five-seat composite material, composite monoplane built since 1999 by Cirrus Aircraft of Duluth, Minnesota. The aircraft is the company's earliest type certificate, type-certified model, ea ...
and Cirrus SR22, a monoplane
* Socialist Republic
A socialist state, socialist republic, or socialist country is a sovereign state constitutionally dedicated to the establishment of socialism. This article is about states that refer to themselves as socialist states, and not specifically ab ...
, as in USSR, ASSR, RSFSR, etc.
* Gibbs SR, a brand of toothpaste
* Senior (disambiguation)
{{Disambiguation