natural weapon

The unicorns from the original D&D Monster Manual will attack you with their obvious natural weapons — Glock pistols hidden beneath their n. natural weapons
in Dungeons & Dragons, d20 games, and certain other games with combat systems, weapons that are part of the body of a monster, creature, or character, as opposed to weapons that are separate objects carried by the combatant; examples would include a Dire Elk’s antlers or a dragon’s claws, but usu. not magical attacks such as breath weapons; such creatures are usually considered always armed, and do not have to expend actions or rounds to arm themselves; term seems to first appear in the 2nd ed. D&D rules; c. 1989. See also natural armor.