ecdysone

American  

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

noun

1. an insect hormone that stimulates metamorphosis.

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ecdysone British  

/ ɛkˈdaɪˌsəʊn /

noun

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

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Etymology

Origin of ecdysone

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

Example Sentences

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

From Science Daily

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

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

Instead, a "stop growing" switch is triggered by the gland that makes ecdysone.

From Science Daily

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