ecdysis noun. ['ɛkdɪsɪs, ɛk'dʌɪsɪs] Pl. -dyses [-dɪsi:z, -'dʌɪsi:z]. M19.
[Greek ekdusis, from ekduein put off, shed, from ek- EX-² + duein put.]
The action or process of shedding an outer skin or integument, as in insects, reptiles, etc.

■ ecdysial [-'dɪz-] adjective E20.

■ ecdysone noun (Biochemistry) a steroid hormone that controls moulting in insects and other arthropods M20.

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