TOS may refer to:

General

The original series ''Star Trek'' is an American science fiction television series created by Gene Roddenberry that follows the adventures of the starship and its crew. It later acquired the retronym of ''Star Trek: The Original Series'' (''TOS'') to distingui ...

of a particular media, in contrast to a spin-off

Chemistry

Tosyl In organic chemistry, a toluenesulfonyl group (tosyl group, abbreviated Ts or Tos) is a univalent functional group with the chemical formula –. It consists of a Toluene, tolyl group, –, joined to a sulfonyl group, ––, with the open vale ...

, a chemical group * Gy's sampling theory (abbreviation)

Entertainment

* ''

Star Trek: The Original Series ''Star Trek'' is an American science fiction television series created by Gene Roddenberry that follows the adventures of the starship and its crew. It later acquired the retronym of ''Star Trek: The Original Series'' (''TOS'') to distinguis ...

'', a science fiction TV series originally known as ''Star Trek'' * '' Tree of Savior'', a multiplayer online role playing game published by IMC Games in 2016

Medicine

* Thoracic outlet syndrome, a medical condition *

Toxic oil syndrome Toxic oil syndrome (TOS) or simply toxic syndrome (Spanish: ''síndrome del aceite tóxico'' or ''síndrome tóxico'') is a musculoskeletal disease. A 1981 outbreak in Spain which affected about 20,000 people, with over 300 dying within a few m ...

, caused by consuming non-food grade oil

Organizations

The Oceanography Society The Oceanography Society (TOS) is a nonprofit society founded in 1988, based in Rockville, Maryland, U.S. and incorporated in the District of Columbia. It is an oceanographical organization that aims to promote communication among oceanographe ...

Theosophical Order of Service The Theosophical Order of Service (TOS) is an international organization founded in 1908 by Annie Besant, the second International President of the Theosophical Society. Its motto is: "A union of those who love in the service of all that suffers." ...

, an international organization *

Temple of Set The Temple of Set is an occult initiatory order founded in 1975. A new religious movement and form of Western esotericism, the Temple espouses a religion known as Setianism, whose practitioners are called Setians. This is sometimes identified ...

, an occult society *

Tennessee Ornithological Society The Tennessee Ornithological Society (TOS) is an independent non-profit educational, scientific, and conservation organization in Tennessee, United States, dedicated to the study and conservation of birds. It was formed in 1915 and has published a ...

Trucial Oman Scouts The Trucial Oman Scouts was a paramilitary force that the British raised in 1951 as the Trucial Oman Levies, to serve in the Trucial States. In 1956, the Levies were renamed the Trucial Oman Scouts. In 1971, upon the formation of the United Arab ...

, UK force raised in Oman in 1951

Other uses

TOS-1 TOS-1 (russian: тяжёлая огнемётная система �ОС-1}, Heavy Flamethrower System) is a Soviet 220 mm 30-barrel (original system, Object 634 or TOS-1M) or 24-barrel (Object 634B or TOS-1A) multiple rocket launcher capab ...

, a Soviet thermobaric weapon *

Tam o' Shanter (cap) A tam o' shanter (in the British military often abbreviated to ToS) or "tammie" is a name given to the traditional Scottish bonnet worn by men. The name derives from Tam o' Shanter, the eponymous hero of the 1790 Robert Burns poem. Descripti ...

* Atari TOS (Tramiel Operating System), computer operating system * TOS/360, Tape Operating System/360 *

Tromsø Airport Tromsø Airport ( no, Tromsø lufthavn; ) is an international airport located at Langnes in the city of Tromsø in Tromsø Municipality, Troms og Finnmark county, Norway. Situated on the western shore of the island of Tromsøya, it features a r ...

, Norway, IATA code * Type of service, a field in the header of IPv4 packets * Terminal Operating System, controlling cargo movement *

Testament of Solomon The Testament of Solomon is a pseudepigraphical composite text ascribed to King Solomon but not regarded as canonical scripture by Jews or Christian groups. It was written in the Greek language, based on precedents dating back to the early 1st m ...