Free TranslationFree Translation
Synonyms, antonyms, pronunciation

  Home
English Dictionary      examples: 'day', 'get rid of', 'New York Bay'




Operculum   Listen
noun
Operculum  n.  (pl. L. opercula, E. operculums)  
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.
(Zool.)
(a)
The lid closing the aperture of various species of shells, as the common whelk.
(b)
Any lid-shaped structure closing the aperture of a tube or shell.






Collaborative International Dictionary of English 0.48








Advanced search
     Find words:
Starting with
Ending with
Containing
Matching a pattern  

Synonyms
Antonyms
Quotes
Words linked to  

only single words



Share |





"Operculum" Quotes from Famous Books



... minute, broadly funnel-shaped, stipitate. The peridium simple, variously colored by innate lime granules, opening by a regular cap or operculum, brownish white, darkest in the centre, always more or less convex; stipe equalling the cup in height, dark brown, longitudinally ridged; the capillitium a close-meshed network, with small rounded or slightly angular masses of ochre-brown lime-granules, larger toward the centre; spores ...
— The North American Slime-Moulds • Thomas H. (Thomas Huston) MacBride



Words linked to "Operculum" :   plate



Copyright © 2024 e-Free Translation.com