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

nucleolus organizer

noun

Definition of nucleolus organizer

  1. :  the specific part of a chromosome with which a nucleolus is associated especially during its reorganization after nuclear division —called also nucleolar organizer



1939

First Known Use of nucleolus organizer

1939


Medical Dictionary

nucleolus organizer

noun

Medical Definition of nucleolus organizer

  1. :  the specific part of a chromosome with which a nucleolus is associated especially during its reorganization after nuclear division—called also nucleolar organizer




Learn More about nucleolus organizer


Seen and Heard

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

WORD OF THE DAY

expressing little or no emotion

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

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