cataplexy

noun
cat·a·plexy | \ˈka-tə-ˌplek-sē \
plural cataplexies\-sēz \

Definition of cataplexy 

: sudden loss of muscle power following a strong emotional stimulus

Examples of cataplexy in a Sentence

Recent Examples on the Web

Then came the breakthrough: a litter of around seven Doberman puppies, all of them with narcolepsy and cataplexy. Henry Nicholls, CNN, "The science of sleep: Finding a cure for narcolepsy," 24 Oct. 2017 In 2007, Flygare, then a 24-year-old law student, was diagnosed with narcolepsy with cataplexy, a neurological disorder that causes chronic sleepiness and, in her case, symptoms of brief episodes of muscle weakness triggered by strong emotions. Maria Cartaya, CNN, "Runner: Having narcolepsy is harder than a marathon," 23 June 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cataplexy.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of cataplexy

1883, in the meaning defined above

History and Etymology for cataplexy

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

Keep scrolling for more

Learn More about cataplexy

Statistics for cataplexy

Look-up Popularity

Time Traveler for cataplexy

The first known use of cataplexy was in 1883

See more words from the same year

Keep scrolling for more

More Definitions for cataplexy

cataplexy

noun
cat·a·plexy | \ˈkat-ə-ˌplek-sē \
plural cataplexies\-sēz \

Medical Definition of cataplexy 

: 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

More from Merriam-Webster on cataplexy

See words that rhyme with cataplexy

Britannica.com: Encyclopedia article about cataplexy

Comments on cataplexy

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

WORD OF THE DAY

lying above or upon

Get Word of the Day daily email!

Test Your Vocabulary

Words from Greek and Roman Mythology Quiz

  • the-triumph-of-venus-by-alessandro-magnasco
  • Boreal comes from the name of the ancient Greek god of which wind?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Citation

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!