Ec·dy·sis n.; pl. Ecdyses Biol. The act of shedding, or casting off, an outer cuticular layer, as in the case of serpents, lobsters, etc.; a coming out; as, the ecdysis of the pupa from its shell; exuviation.
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ecdysis
n : periodic shedding of the cuticle in arthropods or the outer
skin in reptiles [syn: molt, molting, moult, moulting]
[also: ecdyses (pl)]