chronic fatigue syndrome

noun

Definition of chronic fatigue syndrome

  1. :  a disorder of unknown cause that is characterized by persistent profound fatigue usually accompanied by other symptoms (as headache and tender lymph nodes) unrelated to any preexisting medical condition —abbreviation CFS

1947

First Known Use of chronic fatigue syndrome

1947


CHRONIC FATIGUE SYNDROME Defined for English Language Learners

chronic fatigue syndrome

noun

Definition of chronic fatigue syndrome for English Language Learners

  • medical : an illness that makes you feel very tired for a very long time and that often includes other symptoms such as headaches and weakness


Medical Dictionary

chronic fatigue syndrome

noun

Medical Definition of chronic fatigue syndrome

  1. :  a disorder of uncertain cause that is characterized by persistent profound fatigue usually accompanied by impairment in short-term memory or concentration, sore throat, tender lymph nodes, muscle or joint pain, and headache unrelated to any preexisting medical condition and that typically has an onset at about 30 years of age—abbreviation CFS; called also myalgic encephalomyelitis


Learn More about chronic fatigue syndrome


Seen and Heard

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

WORD OF THE DAY

gray or white with or as if with age

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

  • snowflake-closeup
  • Which is a synonym of imprecate?
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