Share this entry

chalone Line breaks: cha|lone
Pronunciation: /ˈkaləʊn/
/ˈkeɪləʊn/

Definition of chalone in English:

noun

Biochemistry
A substance secreted like a hormone but having the effect of inhibiting a physiological process.
Example sentences
  • A reaction based on chalones cannot explain the re-transformation of the tumour into normal skin cells.
  • In addition, European researchers provided evidence for endogenous growth inhibitory substances, called chalones, in glands and tissues.
  • Regression of generalized leukaemia in rat is induced by the granulocytic chalone.

Origin

Early 20th century: from Greek khalōn 'slackening', present participle of khalaein, on the pattern of hormone.

Share this entry

 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day doofus
Pronunciation: ˈduːfʌs
noun
a stupid person