‖n. pl. [ NL., fr. Gr. &unr_;&unr_;&unr_; a fan + &unr_;&unr_;&unr_;&unr_; a tongue. ] (Zool.) A division of gastropod mollusks having a large number of long, divergent, hooklike, lingual teeth in each transverse row. It includes the scutibranchs. See Illustration in Appendix. [ 1913 Webster ]