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ONAD→hair trigger

hair trigger

Flag: gbEnglishOxford New American Dictionary
hair trigger /ˈhe(ə)r ˈˌtriɡər, ˈhɛ(ə)r ˈˌtrɪɡər/
▸ noun a trigger of a firearm set for release at the slightest pressure.
▪ [as modifier] liable to change suddenly and violently:
a hair-trigger temper.