operculum 1
noundomain: animal
Princeton WordNet [ver.3.1]
Definition
a hard flap serving as a cover for (a) the gill slits in fishes or (b) the opening of the shell in certain gastropods when the body is retracted
a hard flap serving as a cover for (a) the gill slits in fishes or (b) the opening of the shell in certain gastropods when the body is retracted
Project co-funded by European funds
