What is an order of mammals including the armadillos, sloths, and anteaters; -- called also Bruta. The incisor teeth are rarely developed, and in some groups all the teeth are lacking called?

edentata — An order of mammals including the armadillos, sloths, and anteaters; -- called also Bruta. The incisor teeth are rarely developed, and in some groups all the teeth are lacking. (Webster's 1913.)