hypotonia
noun
hy·po·to·nia ˌhī-pə-ˈtō-nē-ə 
-pō-
: the state of having hypotonic muscle tone
Example Sentences
Recent Examples on the Web Symptoms include agitation, hypertonia (too much muscle tone resulting in stiffness), hypotonia (too little muscle tone resulting in floppiness), tremors, drowsiness, and more. 
Korin Miller, SELF, 17 Jan. 2019 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, 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, 31 Mar. 2018
Korin Miller, SELF, 17 Jan. 2019 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, 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, 31 Mar. 2018 Word History
Etymology
New Latin
First Known Use
circa 1886, in the meaning defined above
Medical Definition
hypotonia
noun
hy·po·to·nia ˌhī-pə-ˈtō-nē-ə, -pō-
1
: abnormally low pressure of the intraocular fluid
2
: the state of having hypotonic muscle tone
- Hypophrygian mode
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