trigger Hear it!

trigger Definition

trig·ger (trig′ər)

noun

  1. a small lever or part which when pulled or pressed releases a catch, spring, etc.
  2. in firearms, a small lever pressed back by the finger to activate the firing mechanism
  3. an act, impulse, etc. that initiates an action, series of events, etc.

Etymology: earlier tricker < Du trekker < trekken, to draw, pull: see trek

transitive verb

  1. to fire or activate by pulling or pressing a trigger
  2. to initiate (an action); set off the fight that triggered the riot

trigger Idioms

quick on the trigger

☆ Informal
  1. quick to fire a gun
  2. quick to act, understand, retort, etc.; alert
Trigger Hacker Definition
Procedural code automatically executed in response to certain events on a particular table in a database. Triggers can restrict access to specific data, perform logging, or audit access to data. Triggers can be either “row triggers” or “statement triggers.” The former define an action for every row of a table, whereas the latter occur only once and are not dependent on the shape of the data. Moreover, there are BEFORE and AFTER triggers, which alter the time of execution of the trigger. Also, an INSTEAD OF trigger, a conditional trigger, will fire instead of the triggering statement. There are typically three triggering events that cause trigger to fire: INSERT (as a new record is being inserted into the database); UPDATE (as a record is being changed); and DELETE (as a record is being deleted). Databases that support triggers typically give programmers access to record variables by means of a syntax such as OLD.cust_name or NEW.cust_name.

The term trigger is also used to describe an event that has to occur to activate a virus. These events can either be time based or condition based, meaning that one event must occur before the virus is activated. An example is the opening of a file or an email attachment. Other triggers can be activated over the network to coordinate a distributed attack, in which a number of hosts are infected with a virus and need to be activated at the same time to take down a target.

See Also: Denial of Service; Distributed Denial of Service; Virus.

GNU Free Documentation License. Database Trigger. GNU Website. http://en.wikipedia.org/wiki/Database_trigger.
trigger Usage Examples

Object

  • seizure: Large amounts of any liquid, even water, can trigger a seizure in a person with epilepsy.
  • landslide: Although they never get as speedy and ferocious as the ones you guys have to deal with, continued rainfall tends to trigger landslides.
  • reaction: Any substance that triggers an allergic reaction is called an allergen.
  • asthma: No stone is left unturned, from ' What triggers asthma?
  • cascade: It is this aggregation of platelets which triggers the cascade of reactions leading to blood clot formation ( thrombosis ).

Converse of object

  • pull: People are now asking us: was he entitled to pull the trigger?
  • squeeze: The " jaws " of the clamp meter are opened by squeezing the trigger on the left-hand side.
  • push: Push the trigger - case will kick out your CD or DVD.

Adjective modifier

  • allergic: Most people with asthma are allergic to certain things in the environment these are known as allergic triggers.

Modifies a noun

  • pulse: Vg1 returns rapidly to its original level and remains there until the next trigger pulse arrives.
  • finger: A lot of quick thinking is needed and quick trigger fingers too.
  • mechanism: Such a fast healing process, probably on the order of tens of seconds, leads to a repeatable trigger mechanism.
  • threshold: This circuit has a level control and peak display indicator, a variable trigger threshold and trigger indication.
  • guard: With fingers on the trigger guard just in case we made an error, sweat pouring down our backs as we lay in terror.

Noun used with modifier

  • chemoreceptor: It also acts on a part of your brain called the chemoreceptor trigger zone.
  • asthma: Cigarette smoke is the second most common asthma trigger in the workplace.
  • R: Resident Evil 4 also allows you to freely aim your gun from a beautiful over-the-shoulder view when holding the R trigger.

Used with why or when

  • when: She said in her view the expenses were triggered when the General Election was declared.

Preposition: of

  • asthma: Unfortunately, one of the most common triggers of asthma, is allergy to house dust mites.
trigger Quotes

Are we so sure that with15 representatives†inacting under the unanimity rule, the deterrent would continue to deter? There may be one finger on the trigger, but there will be15 fingers on the safety catch.

—Stockton

Whose finger do you want on the trigger?

—Anonymous

Whose finger do you want on the trigger?

—Daily Mirror