Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of opercula is as below...

Aptychus :: Aptychus (n.) A shelly plate found in the terminal chambers of ammonite shells. Some authors consider them to be jaws; others, opercula..

Pomacentroid :: Pomacentroid (a.) Pertaining to the Pomacentridae, a family of bright-colored tropical fishes having spiny opercula; -- often called coral fishes..

Operculated :: Operculated (a.) Closed by a lid or cover, as the capsules of the mosses..

Interoperculum :: Interoperculum (n.) The postero-inferior opercular bone, in fishes..

Inopercular :: Inopercular (a.) Alt. of Inoperculat.

Preoperculum :: Preoperculum (n.) The anterior opercular bone in fishes.

Operculum :: Operculum (n.) The principal opercular bone in the upper and posterior part of the gill cover.

Paludina :: Paludina (n.) Any one of numerous species of freshwater pectinibranchiate mollusks, belonging to Paludina, Melantho, and allied genera. They have an operculated shell which is usually green, often with brown bands. See Illust. of Pond snail, under Pond..

Suborbicular :: Suboperculum (n.) The lower opercular bone in fishes.

Interpercular :: Interpercular (n.) The interopercular bone.

Multispiral :: Multispiral (a.) Having numerous spiral coils round a center or nucleus; -- said of the opercula of certain shells.

Subopercular :: Subopercular (a.) Situated below the operculum; pertaining to the suboperculum.

Opercular :: Opercular (n.) The principal opercular bone or operculum of fishes.

Operculate :: Operculate (a.) Alt. of Operculate.

Inoperculate :: Inoperculate (a.) Having no operculum; -- said of certain gastropod shells.

Opercle :: Opercle (n.) Any one of the bony plates which support the gill covers of fishes; an opercular bone.

Opercula :: Opercula (pl. ) of Operculu.

Operculum :: Operculum (n.) Any lidlike or operculiform process or part; as, the opercula of a dental follicle..

Opercula :: Opercula (n. pl.) See Operculum.

Deoperculate :: Deoperculate (a.) Having the lid removed; -- said of the capsules of mosses.

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