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..

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

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

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

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

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

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

Unoperculated :: Unoperculated (a.) Destitute of an operculum, or cover..

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

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

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

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

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

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

Suboperculum :: Subopercular (n.) The suboperculum.

Preopercular :: Preopercular (n.) The preoperculum.

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

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

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..

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

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