ecdysone

noun
ec·​dy·​sone | \ ˈek-də-ˌsōn How to pronounce ecdysone (audio) \
variants: or less commonly ecdyson \ ˈek-​də-​ˌsän How to pronounce ecdyson (audio) \

Definition of ecdysone

: any of several arthropod hormones that in insects are produced by the prothoracic gland and that trigger molting and metamorphosis

First Known Use of ecdysone

1956, in the meaning defined above

History and Etymology for ecdysone

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.

Keep scrolling for more

Learn More about ecdysone

Time Traveler for ecdysone

Time Traveler

The first known use of ecdysone was in 1956

See more words from the same year

Statistics for ecdysone

Cite this Entry

“Ecdysone.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ecdysone. Accessed 26 May. 2020.

Keep scrolling for more

More Definitions for ecdysone

ecdysone

noun
ec·​dy·​sone | \ ˈek-də-ˌsōn How to pronounce ecdysone (audio) \
variants: also ecdyson \ -​ˌsän How to pronounce ecdyson (audio) \

Medical Definition of ecdysone

: any of several arthropod hormones that in insects are produced by the prothoracic gland and that trigger molting and metamorphosis

More from Merriam-Webster on ecdysone

Britannica.com: Encyclopedia article about ecdysone

Comments on ecdysone

What made you want to look up ecdysone? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

See Definitions and Examples »

Get Word of the Day daily email!

Test Your Vocabulary

Obscure Shapes

  • a pile of three dimensional shapes in green
  • Something that is ooid is shaped like:
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Dictionary Devil

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!