intron

play
noun in·tron \ˈin-ˌträn\

Definition of intron

  1. :  a polynucleotide sequence in a nucleic acid that does not code information for protein synthesis and is removed before translation of messenger RNA — compare exon

Origin and Etymology of intron

intervening sequence + 2-on


Medical Dictionary

intron

play
noun in·tron \ˈin-ˌträn\

Medical Definition of intron

  1. :  a polynucleotide sequence in a nucleic acid that does not code information for protein synthesis and is removed before translation of messenger RNA—compare exon

intronic

\in-ˈträn-ik\play adjective

Learn More about intron


Seen and Heard

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

Love words? Need even more definitions?

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

WORD OF THE DAY

to reach the highest or a decisive point

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

  • istock-refers-to-this-as-a-tumble-of-strawberries-which-sounded-pretty-nice-to-us
  • Which is a synonym of garner?
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

Love words? Need even more definitions?

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