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Mills grenade

American

noun

Military.

a type of high-explosive grenade weighing about 1.5 pounds (0.7 kilogram).

Etymology

Origin of Mills grenade

First recorded in 1915–20; named after Sir W. Mills (1856–1932), its English inventor

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.