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...

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

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

Operculated :: Operculated (a.) Having an operculum, or an apparatus for protecting the gills; -- said of shells and of fishes..

Preopercular :: Preopercular (n.) The preoperculum.

Piper :: Piper (n.) A common European gurnard (Trigla lyra), having a large head, with prominent nasal projection, and with large, sharp, opercular spines..

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

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

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..

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

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

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

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

Opercula :: Opercula (pl. ) of Operculu.

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

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

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

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

Preopercular :: Preopercular (a.) Situated in front of the operculum; pertaining to the preoperculum.

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

Quin :: Quin (n.) A European scallop (Pecten opercularis), used as food..

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