hand grenade


noun

a grenade or explosive shell that is thrown by hand and exploded either by impact or by means of a fuze.
a grenade or glass missile containing a chemical, for extinguishing fire.

Origin of hand grenade

First recorded in 1655–65

British Dictionary definitions for hand grenade

hand grenade

noun

a small metal or plastic canister containing explosives, usually activated by a short fuse and used in close combat