ecdysone

noun

ec·​dy·​sone ˈek-də-ˌsōn How to pronounce ecdysone (audio)
variants or less commonly ecdyson
: any of several arthropod hormones that in insects are produced by the prothoracic gland and that trigger molting and metamorphosis

Examples of ecdysone in a Sentence

Recent Examples on the Web
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Most species make their own ecdysone but D.pachea is ill-equipped. Ed Yong, Discover Magazine, 28 Sep. 2012 This chemical reaction is the first of many that leads to ecdysone – a hormone that all insects need to transform from a larva into an adult. Ed Yong, Discover Magazine, 28 Sep. 2012

Word History

Etymology

borrowed from German Ecdyson, from Ecdysis ecdysis + -on (in Hormon hormone)

Note: Name introduced by the German biochemist Peter Karlson (1918-2001) in "Chemische Untersuchungen über die Metamorphosehormone der Insekten," Annales des sciences naturelles: zoologie et biologie animale, séries 11, tome 18 (1956), pp. 125-37.

First Known Use

1956, in the meaning defined above

Time Traveler
The first known use of ecdysone was in 1956

Dictionary Entries Near ecdysone

Cite this Entry

“Ecdysone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ecdysone. Accessed 29 Nov. 2024.

Medical Definition

ecdysone

noun
ec·​dy·​sone ˈek-də-ˌsōn How to pronounce ecdysone (audio)
variants also ecdyson
: any of several arthropod hormones that in insects are produced by the prothoracic gland and that trigger molting and metamorphosis

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