micronucleus

noun
mi·​cro·​nu·​cle·​us | \ ˌmī-krō-ˈnü-klē-əs How to pronounce micronucleus (audio) , -ˈnyü-\

Definition of micronucleus

: a minute nucleus specifically : one that is primarily concerned with reproductive and genetic functions in most ciliated protozoans

First Known Use of micronucleus

1887, in the meaning defined above

History and Etymology for micronucleus

New Latin

Keep scrolling for more

Learn More about micronucleus

Statistics for micronucleus

Look-up Popularity

Time Traveler for micronucleus

The first known use of micronucleus was in 1887

See more words from the same year

Keep scrolling for more

More Definitions for micronucleus

micronucleus

noun
mi·​cro·​nu·​cle·​us | \ ˌmī-krō-ˈn(y)ü-klē-əs How to pronounce micronucleus (audio) \

Medical Definition of micronucleus

: a minute nucleus specifically : one regarded as primarily concerned with reproductive and genetic functions in most ciliated protozoans — compare macronucleus

More from Merriam-Webster on micronucleus

Britannica.com: Encyclopedia article about micronucleus

Comments on micronucleus

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

WORD OF THE DAY

to be made up of

Get Word of the Day daily email!

Test Your Vocabulary

Where in the World? A Quiz

  • peter bruegel tower of babel painting
  • What language does pajama come from?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Dictionary Devil

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!