cataplexy

play
noun cat·a·plexy \ˈka-tə-ˌplek-sē\

Definition of cataplexy

plural

cataplexies

play \-sēz\
  1. :  sudden loss of muscle power following a strong emotional stimulus

Origin and Etymology of cataplexy

German Kataplexie, from Greek kataplēxis, from kataplēssein to strike down, terrify, from kata- + plēssein to strike — more at plaint


First Known Use: 1883


Medical Dictionary

cataplexy

play
noun cat·a·plexy \ˈkat-ə-ˌplek-sē\

Medical Definition of cataplexy

plural

cataplexies

\-sēz\play
  1. :  a sudden loss of muscle control with retention of clear consciousness that follows a strong emotional stimulus (as elation, surprise, or anger) and is a characteristic symptom of narcolepsy


Learn More about cataplexy


Seen and Heard

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

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

a weapon for destroying ships

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

  • winning-words-from-the-national-spelling-bee-logo
  • Which is the correct spelling of the winning word from 1988?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
SCRABBLE® Sprint

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!