ecdysone

(redirected from ecdyson)
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ec·dy·sone

 (ĕk′də-sōn′)
n.
A steroid hormone produced by insects and crustaceans that promotes growth and controls molting.

ecdysone

or

ecdyson

n
(Zoology) a hormone secreted by the prothoracic gland of insects that controls ecdysis and stimulates metamorphosis
[C20: from German ecdyson, from Greek ekdusis; see ecdysis]

ec•dy•sone

(ˈɛk dəˌzoʊn, -ˌsoʊn)

n.
an insect hormone that stimulates metamorphosis.
[1955–60; ecdys (is) + -one]