tonicity

T1O1N1I1C3I1T1Y4
/təˈnɪsɪti/

noun

The normal presence of tone or tension in a muscle or organ; tonus

Similar
tonustone
Opposite
atonicity
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Meanings

nountonicity (plural tonicities)

plural tonicities

  1. medicineThe normal presence of tone or tension in a muscle or organ; tonus
  2. sciencesThe ability of nonpenetrable solutes in a solution to exert an osmotic pressure upon a membrane

Synonyms & antonyms

nounthe elastic tension of living muscles, arteries, etc. that facilitate response to stimuli

Similar
tonustone
Opposite
atonicity
Broader
tensiontensitytenseness
Also see
tonetonus

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

From tonic + -ity.

Full word history & related roots →

Translations

Bulgarian тонус
  • тонус (tonus)The normal presence of tone or tension in a muscle or organ; tonus
Swedish tonus
  • tonusThe normal presence of tone or tension in a muscle or organ; tonus

Rhymes & wordplay

Anagrams

onticity
Cite this entry
APA

tonicity. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/tonicity

MLA

“tonicity.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/tonicity. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “tonicity,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/tonicity.

Source: tonicity on Wiktionary, CC BY-SA 4.0.