n. [ Gr. &unr_; wing + &unr_; priv. + &unr_;, &unr_;, a tooth. ] (Paleon.) A genus of American Cretaceous pterodactyls destitute of teeth. Several species are known, some of which had an expanse of wings of twenty feet or more. [ 1913 Webster ]
‖n. pl. [ NL. ] (Paleon.) A group of pterodactyls destitute of teeth, as in the genus