Ep"i*phragm (?), n. [Gr. a covering, lid, fr. to block up.] Zool.
A membranaceous or calcareous septum with which some mollusks close the aperture of the shell during the time of hibernation, or aestivation.
© Webster 1913.
Log in or register to write something here or to contact authors.
Need help? email@example.com