TOS may refer to:

General

* Terms of service * The original series of a particular media, in contrast to a

spin-off Spin-off, Spin Off, Spin-Off, or Spinoff may refer to: Entertainment and media *Spinoff (media), a media work derived from an existing work *''The Spinoff'', a New Zealand current affairs magazine * ''Spin Off'' (Canadian game show), a 2013 Canad ...

Chemistry

Tosyl In organic chemistry, a toluenesulfonyl group (tosyl group, abbreviated Ts or TosIn this article, "Ts", unless otherwise stated, means tosyl, not tennessine.) is a univalent functional group with the chemical formula . It consists of a tolyl ...

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

Entertainment

* '' Star Trek: The Original Series'', a name retroactively applied to the 1960s science fiction TV series originally known as ''Star Trek'' * '' Temple of Shadows'', 2004 album by Angra * ''

T·O·S (Terminate on Sight) ''T·O·S (Terminate on Sight)'' is the second and final studio album by rap group G-Unit. It was the group's first album in five years since their previous album, ''Beg for Mercy''.Slava Kuperstein (February 5, 2008)50 Cent Speaks on New Mixtap ...

'', 2008 album by G-Unit * '' Town of Salem'', a social deduction game published by BlankMediaGames in 2014 * '' Tree of Savior'', a multiplayer online role playing game published by IMC Games in 2016

Medicine

Thoracic outlet syndrome Thoracic outlet syndrome (TOS) is a condition in which there is compression of the nerves, arteries, or veins in the superior thoracic aperture, the passageway from the lower neck to the armpit, also known as the thoracic outlet. There are t ...

, a medical condition * Toxic oil syndrome, caused by consuming non-food grade oil

Organizations

* The Oceanography Society * Theosophical Order of Service, an international organization *

Temple of Set The Temple of Set (ToS) is an occult religious organization 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 sometime ...

, an occult society * Tennessee Ornithological Society *

Trucial Oman Scouts The Trucial Oman Scouts (), known as Trucial Oman Levies prior to 1956, was a predecessor paramilitary force that operated in the Trucial States under British control from 1951 to 1971, after which they were renamed to the Union Defence Force with ...

, UK force raised in Oman in 1951 * TV Oita, a Japanese TV station

Other uses

TOS-1 TOS-1 Buratino (, 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 Solntsepyok) multiple rocket launcher capable of using thermobaric warheads, mounted on a ...

, 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. Description ...

Atari TOS TOS (The Operating System) is the operating system of the Atari ST range of computers. This range includes the 520ST and 1040ST, their STF/M/FM and STE variants and the Mega ST/STE. Later, 32-bit machines ( TT, Falcon030) were developed using a ...

(The Operating System, also unofficially known as Tramiel Operating System), computer operating system * TOS/360, Tape Operating System/360 * Tromsø Airport, 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 mi ...