opercle
O"per*cle, n. Etym: [Cf.F. opercule. See Operculum.] 1. (Anat.) Defn: Any one of the bony plates which support the gill covers of fishes; an opercular bone. 2. (Zoöl.) Defn: An operculum.
O"per*cle, n. Etym: [Cf.F. opercule. See Operculum.] 1. (Anat.) Defn: Any one of the bony plates which support the gill covers of fishes; an opercular bone. 2. (Zoöl.) Defn: An operculum.