operculum
noun
a part or organ serving as a lid or cover, as a covering flap on a seed vessel.
opercular
-
a word derived from
operculum.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
As in the other case the skin and opercular membranes were distended by liquid beneath them.
From Hormones and Heredity by J. T. Cunningham
The temples before the upper limb of the preoperculum are densely scaly, as is also the gill flap above the upper opercular ridge.
In the argument thus far we have considered terrestrial, adult amphibians, since it is only in these that either the normal middle ear and tympanum, or the opercular apparatus, is present.
From The Ancestry of Modern Amphibia: A Review of the Evidence by Theodore H. (Theodore Hildreth) Eaton
Whence and for what purpose, if the Serpulae were produced or created as ready-formed species, these lateral filaments of the opercular peduncle?
From Facts and Arguments for Darwin by Fritz Muller
Segmentation is, as in other richly yolked eggs, incomplete, confined to the germinal disk at the opercular pole.
From Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 8 "Cube" to "Daguerre, Louis" by Various
