smoke grenade(n = noun.artifact) smoke bomb - a bomb that gives off thick smoke when it explodes; used to make a smoke screen or to mark a position;
is a kind of bomb

fragmentation grenade, go up in smoke, grenade, grenade thrower, gun smoke, hand grenade, london smoke, prairie smoke, rifle grenade, smoke, smoke alarm, smoke ball, smoke bomb, smoke bush, smoke hole, smoke out, smoke screen, smoke tree, tear gas grenade