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ecdysone

American

[ek-duh-zohn, -sohn] / ˈɛk dəˌzoʊn, -ˌsoʊn /

noun

an insect hormone that stimulates metamorphosis.

ecdysone British

/ ɛkˈdaɪˌsəʊn /

noun

a hormone secreted by the prothoracic gland of insects that controls ecdysis and stimulates metamorphosis

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of ecdysone

First recorded in 1955–60; ecdys(is) + -one

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

They hypothesized that it had something to do with a steroid hormone involved in fruit fly growth called ecdysone, which is similar to estrogen and testosterone in humans.

From Science Daily • Nov. 27, 2023

But once ecdysone reaches a certain level, the gland no longer needs that nutritional information to make decisions and starts regulating itself.

From Science Daily • Nov. 27, 2023

In the larval stage, that gland receives lots of nutritional information that helps it decide how to regulate ecdysone production.

From Science Daily • Nov. 27, 2023

Karlson wondered how ecdysone would affect that transformation.

From Time Magazine Archive

Karlson dipped into his tiny supply of pure ecdysone and sent a five-milligram test sample to Ulrich Clever, a young biochemist at the Max Planck Institute in T�bingen.

From Time Magazine Archive

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023