Like Flickr, but without the photos.

operculum

(n): 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

( more... )

Leave a comment, citation, or private note

Register or login to leave a comment.

first listed by:

appears in these lists:

Login:	Your login identifies you publicly, and can't contain spaces or punctuation.
Email:
Password:	Password must be at least 5 characters long.
Password again: