Hand grenade Meaning, Definition & Usage

  1. noun a grenade designed to be thrown by hand

WordNet

Definitions
  1. . (a) A small grenade of iron or glass, usually about two and a half inches in diameter, to be thrown from the hand into the head of a sap, trenches, covered way, or upon besiegers mounting a breach. (b) A portable fire extinguisher consisting of a glass bottle containing water and gas. It is thrown into the flames. Called also fire grenade.

Webster 1913