Lamellicorn \La*mel"li*corn\, a. [Lamella + L. cornu a horn: cf. F. lamellicorne. See {Lamella}.] (Zo["o]l.) (a) Having antenn[ae] terminating in a group of flat lamell[ae]; -- said of certain coleopterous insects. (b) Terminating in a group of flat lamell[ae]; -- said of antenn[ae]. -- n. A lamellicorn insect.