What is to shed an old covering or condition preliminary to taking on a new one; to molt. There is reason to suppose that very old crayfish do not exuviate every year. Huxley called?

exuviate — To shed an old covering or condition preliminary to taking on a new one; to molt. There is reason to suppose that very old crayfish do not exuviate every year. Huxley. (Webster's 1913.)

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