Definition of Operculum. Meaning of Operculum. Synonyms of Operculum

Here you will find one or more explanations in English for the word Operculum. Also in the bottom left of the page several parts of wikipedia pages related to the word Operculum and, of course, Operculum synonyms and on the right images related to the word Operculum.

Definition of Operculum

Operculum
Operculum O*per"cu*lum, n.; pl. L. Opercula, E. Operculums. [L., a cover or lid, fr. operire to cover.] 1. (Bot.) (a) The lid of a pitcherform leaf. (b) The lid of the urnlike capsule of mosses. 2. (Anat.) (a) Any lidlike or operculiform process or part; as, the opercula of a dental follicle. (b) 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. (c) The principal opercular bone in the upper and posterior part of the gill cover. 3. (Zo["o]l.) (a) The lid closing the aperture of various species of shells, as the common whelk. See Illust. of Gastropoda. (b) Any lid-shaped structure closing the aperture of a tube or shell.

Meaning of Operculum from wikipedia

- Look up operculum or opercular in Wiktionary, the free dictionary. Operculum may refer to: Operculum (brain), the part of the brain covering the insula...
- The operculum is a series of bones found in bony fish and chimaeras that serves as a facial support structure and a protective covering for the gills;...
- follicle. The soft tissue covering a partially erupted tooth is known as an operculum, an area which can be difficult to access with normal oral hygiene methods...
- brain anatomy, an operculum (Latin, meaning "little lid") (pl. opercula), may refer to the frontal, temporal, or parietal operculum, which together cover...
- In botany, an operculum (pl. opercula) or calyptra (from Ancient Gr**** καλύπτρα (kalúptra) 'veil') is a cap-like structure in some flowering plants, mosses...
- The operculum (from Latin operculum 'cover, covering'; pl. opercula or operculums) is a corneous or calcareous anatomical structure like a trapdoor that...
- birds are covered by an operculum (plural opercula), a membraneous, horny or cartilaginous flap.(p117) In diving birds, the operculum keeps water out of the...
- The operculum papillare is the iris found in the eyes of elasmobranchs (skates, sharks and rays). It can undergo pupillary light reflex to such an extent...
- In the bryozoan order Cheilostomatida, the operculum is a calcareous or chitinous lid-like structure that protects the opening through which the polypide...
- An operculum is an anatomical feature, a stiff structure resembling a lid or a small door that opens and closes, and thus controls contact between the...