trigger

Definitions

• A finger-operated lever used to fire a gun.
• A similar device used to activate any mechanism.
• An event that initiates others, or incites a response.
• A concept or image that upsets somebody.
• (psychology) An event, experience or other stimulus that initiates a traumatic memory or action in a person.
• (music) An electronic transducer allowing a drum, cymbal, etc. to control an electronic drum unit or similar device.
• (music) A device that manually lengthens (or sometimes shortens) the slide or tubing of a brass instrument, allowing the pitch range to be altered while playing.
• (electronics) A pulse in an electronic circuit that initiates some component.
• (databases) An SQL procedure that may be initiated when a record is inserted, updated or deleted; typically used to maintain referential integrity.
• (online gaming) A text string that, when received by a player, will cause the player to execute a certain command.
• (archaic) A catch to hold the wheel of a carriage on a declivity.