To save this word, you'll need to log in.
ri·bo·nu·cle·ase | \ ˌrī-bō-ˈnü-klē-ˌās 
, -ˈnyü-, -ˌāz \
, -ˈnyü-, -ˌāz \Definition of ribonuclease
: an enzyme that catalyzes the hydrolysis of RNA
— called also RNase
Keep scrolling for more
Keep scrolling for more
More Definitions for ribonuclease
ribonuclease
nounri·bo·nu·cle·ase | \ ˌrī-bō-ˈn(y)ü-klē-ˌās, -ˌāz \
\Medical Definition of ribonuclease
: an enzyme that catalyzes the hydrolysis of RNA
— called also RNase
Comments on ribonuclease
What made you want to look up ribonuclease? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
Intact Latin Quiz
- What did focus mean in Latin?
Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridgedWords at Play
Ask the Editors
Word Games
- Intact Latin Quiz
What did each of these words mean to ancient Romans?
Take the quiz - The Eponym Quiz
Do you know these words that come from names?
Take the quiz - Spell It
Can you spell these 10 commonly misspelled words?
Take the quiz - Add Diction
Build a chain of words by adding one letter at a time.
Play the game
Share ribonuclease
Time Traveler for ribonuclease
The first known use of ribonuclease was in 1938
See more words from the same year