letter bomb
noun
an envelope containing an explosive device designed to detonate when the envelope is opened by the recipient.
Also called
mail bomb.
Origin of letter bomb
First recorded in 1945–50
Words nearby letter bomb
lets,
lett,
lett.,
letted,
letter,
letter bomb,
letter box,
letter card,
letter carrier,
letter drop,
letter missive
British Dictionary definitions for letter bomb
letter bomb
noun
a thin explosive device inside an envelope, detonated when the envelope is opened