crustecdysonemedical dictionary

<endocrinology> A hormone, or biochemical substance produced by one part of the body to trigger an event elsewhere in the body, which causes molting (shedding of the exoskeleton) in crustaceans (such as crabs, lobster, shrimp, etc.), so that the crustacean can undergo a growth spurt before a new exoskeleton hardens.

(09 Oct 1997)