pipe bomb

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noun

a small homemade bomb typically contained in a metal pipe.

Origin of pipe bomb

First recorded in 1965–70

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for pipe bomb

pipe bomb

noun

a small explosive device hidden in a pipe or drain, detonated by means of a timer

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012