Epiphragm

Ep'i·phragm noun [ Greek ... a covering, lid, from ... to block up.] (Zoology) A membranaceous or calcareous septum with which some mollusks close the aperture of the shell during the time of hibernation, or æstivation.
Found on http://www.encyclo.co.uk/webster/E/56

epiphragm

<marine biology> A membranaceous or calcareous septum with which some mollusks close the aperture of the shell during the time of hibernation, or aestivation. ... Origin: Gr. A covering, lid, fr. To block up. ... (19 Mar 1998) ...
Found on http://www.encyclo.co.uk/local/20973

Epiphragm

• (n.) A membranaceous or calcareous septum with which some mollusks close the aperture of the shell during the time of hibernation, or aestivation.
Found on http://thinkexist.com/dictionary/meaning/epiphragm/

epiphragm

epiphragm 1. A calcified or membranous septum produced by certain land snails during hibernation and functioning to cover the shell opening and prevent desiccation. 2. In botany, a membrane enclosing the capsule in certain mosses.
Found on http://www.wordinfo.info/words/index/info/view_unit/1646/

Epiphragm

An epiphragm is a temporary structure which can be created by many species of shelled, air-breathing land snails, terrestrial pulmonate gastropod mollusks. It can also be created by freshwater snails when temporary pools dry up. In most species the epiphragm is made of dried mucus and although it is elastic, it is fairly easily torn when forcibly ...
Found on http://en.wikipedia.org/wiki/Epiphragm
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