Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

operon

play
noun op·er·on \ˈä-pə-ˌrän\

Definition of operon

  1. :  a group of closely linked genes that produces a single messenger RNA molecule in transcription and that consists of structural genes and regulating elements (as an operator and promoter)



Origin and Etymology of operon

French opéron, from opérer to bring about, effect (from Latin operari) + -on 2-on


First Known Use: 1961


Medical Dictionary

operon

play
noun op·er·on \ˈäp-ə-ˌrän\

Medical Definition of operon

  1. :  a group of closely linked genes that produces a single messenger RNA molecule in transcription and that consists of structural genes and regulating elements (as an operator and promoter)




Learn More about operon

  1. Medical Dictionary: Definition of operon Britannica.com: Encyclopedia article about operon


Seen and Heard

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

WORD OF THE DAY

to take off or remove

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

confounded-person

Which is a synonym of indolent?

lazy melancholy philistine frenetic
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

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

TAKE THE QUIZ