Epiphragm
[ep-uh-fram] /ˈɛp əˌfræm/
noun
1.
a calcified or membranous septum produced by certain land snails during hibernation and functioning to cover the shell opening and prevent desiccation.
2.
Botany. a membrane enclosing the capsule in certain mosses.
/ˈɛpɪˌfræm/
noun
1.
a disc of calcium phosphate and mucilage secreted by snails over the aperture of their shells before hibernation
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