''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 (''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, India
* SR Corporation, a South Korean rail operator
Other businesses and organizations
* Sørvágs Róðrarfelag, a Faroese rowing association
* Saarländischer Rundfunk, 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 (), 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 (ISO 3166-2:ID province code SR), a province of Indonesia
Science and technology
Biology and medicine
* SR protein, involved in RNA splicing
* Sarcoplasmic reticulum, a structure found within muscle cells
* Sustained release, 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, an electronic logic device
* SR programming language
* Segment routing, a form of computer networking
* Slew rate, the maximum rate of change of electrical signals
* Sound reinforcement, 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 setup
Transport
* Codename of the 1992 to 2002 Dodge Viper
* Nissan SR engine
* Manx SR and SR2, 1970 US kit cars
* State Route
* Rockaway Park Shuttle in New York City, sometimes signed in documents as SR
Other uses
* Strike rate (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 position in American football
* Special reconnaissance, a military tactic
** United States Air Force Special Reconnaissance
See also
*
* SR-25, a rifle
* Lockheed SR-71 Blackbird, an aircraft
* Cirrus SR20 and Cirrus SR22, a monoplane
* Socialist Republic, as in USSR, ASSR, RSFSR, etc.
* Gibbs SR, a brand of toothpaste
* Senior (disambiguation)
{{Disambiguation