Trigger may refer to:

Notable animals and people

;Mononym * Trigger (horse), owned by cowboy star Roy Rogers ;Nickname * Trigger Alpert (1916–2013), American jazz bassist * "Trigger Mike" Coppola (1900–1966), American gangster ;Surname *

Bruce Trigger Bruce Graham Trigger (June 18, 1937 – December 1, 2006) was a Canadian archaeologist, anthropologist, and ethnohistorian. He was appointed the James McGill Professor at McGill University in 2001. Life Born in Preston, Ontario (now part of ...

(1937–2006), Canadian archaeologist *

Damon Trigger Damon James Trigger (born 22 April 1972) is a New Zealand-born former English cricketer. Trigger was a right-handed batsman who bowled right-arm medium-fast. He was born at Lower Hutt, Wellington. Trigger represented the Kent Cricket Board ...

(born 1972), New Zealand born former English cricketer *

Hannah Trigger Hannah Trigger (born 5 February 1987) is an Australian snowboarder Snowboarding is a recreational and competitive activity that involves descending a snow-covered surface while standing on a snowboard that is almost always attached to a rider ...

(born 1987), Australian snowboarder *

Ian Trigger Ian Trigger (30 September 1938 – 6 January 2010) was a British actor of stage, film and television who had a successful career in the United States. A diminutive actor, Trigger's long career saw him working in the West End, on Broadway and ...

(1938–2010), British actor

Technology

Trigger (firearms) A trigger is a mechanism that actuates the function of a ranged weapon such as a firearm, airgun, crossbow, or speargun. The word may also be used to describe a switch that initiates the operation of other non-shooting devices such as a t ...

, a mechanism that actuates the firing of firearms *

Database trigger A database trigger is procedural code that is automatically executed in response to certain events on a particular table or view in a database. The trigger is mostly used for maintaining the integrity of the information on the database. For exampl ...

, procedural code that is automatically executed in response to certain events *

Dead man's trigger A dead man's switch (see alternative names) is a switch that is designed to be activated or deactivated if the human operator becomes incapacitated, such as through death, loss of consciousness, or being bodily removed from control. Originally a ...

, a safety device that activates safeguards if the operator is incapacitated *

Flip-flop (electronics) In electronics, a flip-flop or latch is a circuit that has two stable states and can be used to store state information – a bistable multivibrator. The circuit can be made to change state by signals applied to one or more control inputs and ...

, called a trigger circuit by IBM * Image trigger, a device used in high speed cameras *

Schmitt trigger In electronics, a Schmitt trigger is a comparator circuit with hysteresis implemented by applying positive feedback to the noninverting input of a comparator or differential amplifier. It is an active circuit which converts an analog input ...

, an electronic circuit

Art, entertainment, and media

Fictional entities

* Trigger (''Only Fools and Horses''), a BBC sitcom character played by Roger Lloyd-Pack *

Trigger Argee James Henry Schmitz (October 15, 1911 – April 18, 1981) was an American science fiction writer born in Hamburg, Germany of American parents. Life Schmitz was educated at a ''Realgymnasium'' in Hamburg, and grew up speaking both English ...

, a fictional character in a series of science fiction short stories by James H. Schmitz *

Devil Trigger , also known under the alias of , is a character and the main protagonist in ''Devil May Cry'', an action-adventure hack and slash video game series by Japanese developer and publisher Capcom. Introduced as the protagonist of the 2001 game wit ...

, a transformation ability found in the ''Devil May Cry'' series * Trigger, a fictional horse in " Ernie (The Fastest Milkman in the West)" * The main player character in '' Ace Combat 7: Skies Unknown'' * Trigger, the version of

Popeye Popeye the Sailor Man is a fictional cartoon character created by E. C. Segar, Elzie Crisler Segar.Ultraman Trigger'', a 2021 Japanese tokusatsu series

Film and television

* ''Trigger'' (2010 film), a Canadian film * '' Trigger, Jr.'' (1950), a 1950 American film starring Roy Rogers * "Triggers" (''Supergirl''), an episode of ''Supergirl'' * ''Trigger'' (2022 film), a Tamil-language film

Literature

* '' The Trigger'', a 1999 science fiction novel by Arthur C. Clarke and Michael P. Kube-McDowell * ''Triggers'' (novel), a 2012 science fiction novel by Robert J. Sawyer

Music

* The Trigger (band), a Serbian hard rock/heavy metal band

Albums and EPs

* ''Trigger'' (EP), a 2003 EP by In Flames * ''Trigger'' (album), a 2010 album by Porno Graffitti * ''Trigger'', an album by Jacob Quistgaard * ''Trigger'', an album by Soulside * ''Trigger'', an album by

The Law The Law may refer to: Books * ''The Law'' (Bastiat book), an 1850 book by Frédéric Bastiat * ''The Law'' (novel), a 1957 novel by Roger Vailland * ''The Law'' (novella), a 2022 novella by Jim Butcher Film and television * ''The Law'' ( ...

Instruments

* Trigger (drums), a transducer that allows a drum to control an electronic device * Trigger (guitar), the Martin N-20 guitar played by Willie Nelson *

Trigger (trombone) The trombone (german: Posaune, Italian, French: ''trombone'') is a musical instrument in the brass family. As with all brass instruments, sound is produced when the player's vibrating lips cause the air column inside the instrument to vibrat ...

, a switch that enables a trombonist to switch from one set of tubing to another * Trigger pad, a device used in electronic percussion

Songs

* "Trigger" (song), a 2019 song by Major Lazer and Khalid * "Trigger", by Anne-Marie from '' Speak Your Mind'' * "Trigger", by Converge from '' The Dusk in Us'' * "Trigger", by In Flames from '' Reroute to Remain'' and its eponymous EP

Ships

* USS ''Trigger'' (SS-237), a submarine (laid down 1941, sunk 1945) * USS ''Trigger'' (SS-564), a submarine (laid down 1949, decommissioned 1973)

Science

* Trigger (particle physics), hardware or software based device for the (online-)selection of specific event classes from large datasets * Trigger, one event that makes a slope failure in landslides, in the causes of landslides * Environmental trigger, a factor caused (or aided) by the environment * ATLAS trigger system, in the

ATLAS experiment ATLAS is the largest general-purpose particle detector experiment at the Large Hadron Collider (LHC), a particle accelerator at CERN (the European Organization for Nuclear Research) in Switzerland. The experiment is designed to take advantage ...

Biology

Hibernation induction trigger Hibernation is a state of minimal activity and metabolic depression undergone by some animal species. Hibernation is a seasonal heterothermy characterized by low body-temperature, slow breathing and heart-rate, and low metabolic rate. It most ...

, a blood substance that induces hibernation *

Seizure trigger Generally, seizures are observed in patients who do not have epilepsy. There are many causes of seizures. Organ failure, medication and medication withdrawal, cancer, imbalance of electrolytes, hypertensive encephalopathy, may be some of its potenti ...

, a factor that can cause a seizure *

Spawning triggers Spawning triggers'' are environmental cues that cause marine animals to breed. Most commonly they involve sudden changes in the environment, such as changes in temperature, salinity, and/or the abundance of food. Catfish of the genus ''Corydoras'', ...

, environmental cues that cause fish to breed

Other uses

Studio Trigger , also known as Studio Trigger, is a Japanese animation studio founded by former Gainax employees Hiroyuki Imaishi and Masahiko Ōtsuka in 2011. It has produced anime works including '' Kill la Kill'' (2013), ''Little Witch Academia'' (short ...

, a Japanese animation studio founded by Hiroyuki Imaishi * Trigger, a verb conjugation specifying the subject's role in languages with

Austronesian alignment Symmetrical voice, also known as Austronesian alignment, the Philippine-type voice system or the Austronesian focus system, is a typologically unusual kind of morphosyntactic alignment in which "one argument can be marked as having a special rela ...

* ''

Casus belli A (; ) is an act or an event that either provokes or is used to justify a war. A ''casus belli'' involves direct offenses or threats against the nation declaring the war, whereas a ' involves offenses or threats against its ally—usually one ...

'', an event triggering a war *

Trauma trigger A trauma trigger is a psychological stimulus that prompts involuntary recall of a previous traumatic experience. The stimulus itself need not be frightening or traumatic and may be only indirectly or superficially reminiscent of an earlier traum ...

, an event causing traumatic memories or feelings to resurface *

Trigger (game controller) A gamepad is a type of video game controller held in two hands, where the fingers (especially thumbs) are used to provide input. They are typically the main input device for video game consoles. Features Gamepads generally feature a set of ...

, a button on some game controllers