Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Responding to the slightest provocation or stimulation: a hair-trigger temper; a hair-trigger reaction.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. a trigger that will set off a firearm when even a very small pressure is applied
  • adj. unstable, in a situation that could be worsened by the slightest mistake
  • adj. easily angered, having a short temper

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

compound hair + trigger

Examples

Comments

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