a. [ Lamella + L. cornu a horn: cf. F. lamellicorne. See Lamella. ] (Zool.) (a) Having antennae terminating in a group of flat lamellae; -- said of certain coleopterous insects. (b) Terminating in a group of flat lamellae; -- said of antennae. -- n. A lamellicorn insect. [ 1913 Webster ]