-tonia
- a combining form with the meaning “muscle tension, nerve tension,” as specified by the initial element (hypertonia); used also in the formation of words that denote more generally a personality type or personality disorder (catatonia; somatotonia).
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Origin of -tonia
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
-tonia
- Degree or state of tonicity:myotonia.
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The American Heritage® Stedman's Medical Dictionary
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