exuvium

Example:The fish experienced a period of shedding before its annual spawning.

Definition:The process of casting off or sloughing off skin, hair, or other growth.

Example:The snake shed its skin regularly, a natural process known as sloughing.

Definition:A layer of skin, especially that which is cast off, as in certain animals, or as a symptom of certain diseases; a cast-off cast or scab.