1. A biological term meaning the shedding of an outer hard layer(like cuticle), such as done by a snake or a crustacean when it's molting.

2. A strip performance, as done by an ecdysiast.
Snakes are known to perform an ecdysis in order to grow a new outer layer. Interesting, but I'm more interested in the other form of ecdysis performed by females of the human species.
by Adel7 September 3, 2007
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The shedding of an outer layer by insects, reptiles, shed critters, or STs.
This snake lives in an unusually hot box (cage), and as a result, visitors to the Shed Zoo often see it in its ecdysis state.
by THE THROW DOWN LIFE March 23, 2011
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