shedder

One that sheds, as a long-haired animal or a molting snake.

A lobster or crab that is shedding or has just shed.

One who sheds, pours out, or spills.

In zoology, that which sheds, casts, or molts; especially, a lobster or crab which is shedding its shell, or has just done so and is growing a new one.

An adult female salmon after spawning.

One who, or that which, sheds.

A crab in the act of casting its shell, or immediately afterwards while still soft; — applied especially to the edible crabs, which are most prized while in this state.

Agent noun of shed; one who sheds.

A crab in the act of casting its shell, or immediately afterwards while still soft.

an attacker who sheds or spills blood