beavertail noun6 •The tail of a beaver. •(US, Canada) Any object like a beaver's tail, oval or tear-drop in plan, usually broad and flat; usually beaver-tail. •(US, Canada) A fried-dough pastry of such shape; usually beaver tail. •A gun grip of such shape. •A kind of wetsuit having a flap that passes over the crotch and is fastened at the front. •A species of prickly pear cactus, Opuntia basilaris. formsbeavertails