Epiphragm Ep"i*phragm, n. [Gr. ? a covering, lid, fr. ? to block up.] (Zo["o]l.) A membranaceous or calcareous septum with which some mollusks close the aperture of the shell during the time of hibernation, or estivation. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • epiphragm — noun Etymology: Greek epiphragma covering Date: circa 1854 a closing membrane or septum (as of a snail shell or a moss capsule) …   New Collegiate Dictionary

  • epiphragm — n. [Gr. epi, upon; phragma, partition] (MOLLUSCA: Gastropoda) In land snails, a sheet of dried mucus across the aperture preventing loss of moisture during aestivation or hibernation …   Dictionary of invertebrate zoology

  • epiphragm — epiphragmal /ep euh frag meuhl/, adj. /ep euh fram /, n. 1. a calcified or membranous septum produced by certain land snails during hibernation and functioning to cover the shell opening and prevent desiccation. 2. Bot. a membrane enclosing the… …   Universalium

  • epiphragm — noun A dry layer of mucus used by a snail or mollusk to seal itself inside its shell during hibernation …   Wiktionary

  • epiphragm — ep·i·phragm …   English syllables

  • epiphragm — ˈepəˌfram noun ( s) Etymology: Greek epiphragma covering, lid, from epiphrassein, epiphrattein to block up, stop up, from epi + phrassein, phrattein to enclose, fence in, block more at farce 1. : a membranous or calcareous septum with which many… …   Useful english dictionary

  • Crucibulum — laeve growing on wood Scientific classification …   Wikipedia

  • Operculum (gastropod) — Gastropod shell of the freshwater snail Viviparus contectus with corneous operculum in place …   Wikipedia

  • Cyathus striatus — Scientific classification Kingdom …   Wikipedia

  • Desiccation tolerance — refers to the ability of an organism to withstand or endure extreme dryness, or drought like conditions. Plants and animals living in arid or periodically arid environments such as temporary streams or ponds may face the challenge of desiccation …   Wikipedia

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