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"Section M, N, and O"

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


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


O*per`cu*lif"er*ous (?), a.
[Operculum + -ferous.] (Zoöl.) Bearing
an operculum.


O*per"cu*li*form (?), a. [L.
operculum a cover + -form: cf. F.
operculiforme.] Having the form of a lid or
cover.


O*per`cu*lig`e*nous (?), a.
[Operculum + -genous.] (Zoöl.)
Producing an operculum; -- said of the foot, or part of the
foot, of certain mollusks.


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.


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