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Meaning of -tonia

-tonia

Pronunciation: [key]
  1. 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
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.