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

restriction enzyme

noun

Definition of restriction enzyme

  1. :  any of various enzymes that cleave DNA into fragments at specific sites in the interior of the molecule —called also restriction endonuclease



1965

First Known Use of restriction enzyme

1965


Medical Dictionary

restriction enzyme

noun

Medical Definition of restriction enzyme

  1. :  any of various enzymes that cleave DNA into fragments at specific sites in the interior of the molecule and are often used as tools in molecular analysis




Learn More about restriction enzyme


Seen and Heard

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

WORD OF THE DAY

to manage or play awkwardly

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

alt-5746713d76276

Which of these is a synonym of nonplus?

reduce perplex soothe disapprove
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