Vocabulary : Operculated to Operous
Operculated : Closed by a lid or cover, as the capsules of the mosses. ;; Having an operculum, or an apparatus for protecting the gills; -- said of shells and of fishes.Operculiferous : Bearing an operculum.
Operculiform : Having the form of a lid or cover.
Operculigenous : Producing an operculum; -- said of the foot, or part of the foot, of certain mollusks.
Operculum : The lid of a pitcherform leaf. ;; The lid of the urnlike capsule of mosses. ;; Any lidlike or operculiform process or part; as, the opercula of a dental follicle. ;; The fold of integument, usually supported by bony plates, which protects the gills of most fishes and some amphibians; the gill cover; the gill lid. ;; The principal opercular bone in the upper and posterior part of the gill cover. ;; The lid closing the aperture of various species of shells, as the common whelk. See Illust. of Gastropoda. ;; Any lid-shaped structure closing the aperture of a tube or shell.
