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

rapid eye movement sleep

noun

Definition of rapid eye movement sleep



1965

First Known Use of rapid eye movement sleep

1965


Medical Dictionary

rapid eye movement sleep

noun

Medical Definition of rapid eye movement sleep




Learn More about rapid eye movement sleep


Seen and Heard

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

WORD OF THE DAY

a very small amount

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

alphabet-pasta-spelling-help

Which is the correct spelling?

acommodate accomodate acommadate accommodate
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