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-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

See tone, -ia

Words nearby -tonia

tongue twister, tongue worm, tonguing, tonguing-and-grooving plane, Toni, -tonia, tonic, tonic accent, tonic-clonic, tonic contraction, tonic convulsion
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Medical definitions for -tonia

-tonia

suff.

Degree or state of tonicity:myotonia.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.