hy·​po·​to·​nia | \ˌhī-pə-ˈtō-nē-ə, -pō-\

Definition of hypotonia 

: the state of having hypotonic muscle tone

Examples of hypotonia in a Sentence

Recent Examples on the Web

Just months after being born, Jace Pitre was diagnosed with hypotonia, a condition known as floppy baby syndrome that causes low muscle tone and affects the lungs and heart. Mike Candelaria, OrlandoSentinel.com, "Buddy Ball Baseball League a field of dreams for kids with disabilities," 21 June 2018 This could be due in part to what’s known as muscular hypotonia, or a lower than normal muscle tone. Amber Brenza, SELF, "Why Do the Corners of My Mouth Crack—and How Do I Fix It?," 31 Mar. 2018

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

First Known Use of hypotonia

circa 1886, in the meaning defined above

History and Etymology for hypotonia

New Latin

Keep scrolling for more

Learn More about hypotonia

Statistics for hypotonia

Look-up Popularity

Time Traveler for hypotonia

The first known use of hypotonia was circa 1886

See more words from the same year

Keep scrolling for more

More Definitions for hypotonia


hy·​po·​to·​nia | \ˌhī-pə-ˈtō-nē-ə, -pō- \

Medical Definition of hypotonia 

1 : abnormally low pressure of the intraocular fluid

2 : the state of having hypotonic muscle tone

Comments on hypotonia

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


to enclose within walls

Get Word of the Day daily email!

Test Your Vocabulary

Late Autumn 2018 Words of the Day Quiz

  • frosted-autumn-leaves
  • Which is a synonym of yahoo?
True or False

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


Test Your Knowledge - and learn some interesting things along the way.


Love words? Need even more definitions?

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