Dictionary

tonicity

noun to·nic·i·ty \tō-ˈni-sə-tē\

Definition of TONICITY

1
:  the property of possessing tone; especially :  healthy vigor of body or mind
2
:  muscular tonus
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First Known Use of TONICITY

1824
Medical Dictionary

tonicity

noun to·nic·i·ty \tō-ˈnis-ət-ē\
plural to·nic·i·ties

Medical Definition of TONICITY

1
:  the property of possessing tone; especially :  healthy vigor of body or mind
2
:  tonus 2
3
:  the osmotic pressure of a solution <the cells swell and shrink with changing tonicity of the environment>

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