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tonicity

American  
[toh-nis-i-tee] / toʊˈnɪs ɪ ti /

noun

  1. tonic quality or condition.

  2. the state of bodily tone.

  3. Physiology. the normal elastic tension of living muscles, arteries, etc., by which the tone of the system is maintained.


tonicity British  
/ təʊˈnɪsɪtɪ /

noun

  1. the state, condition, or quality of being tonic

  2. physiol another name for tonus

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of tonicity

First recorded in 1815–25; tonic + -ity

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

A solution's tonicity often directly correlates with the osmolarity of the solution.

From Textbooks • Jun. 9, 2022

They have no way of controlling their tonicity.

From Textbooks • Jun. 9, 2022

The measure of the tonicity of a solution, or the total amount of solutes dissolved in a specific amount of solution, is called its osmolarity.

From Textbooks • Apr. 25, 2013

On the other hand, relaxation, while it may remove restraint, makes artistic control and tonicity impossible.

From The Renaissance of the Vocal Art by Myer, Edmund

The muscles scarcely keep pace with the bones in their growth, and tend to be flabby and to lack usual tonicity.

From The Biology, Physiology and Sociology of Reproduction Also Sexual Hygiene with Special Reference to the Male by Hall, Winfield Scott

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