-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).

Origin of -tonia

see origin at tone, -ia

Words nearby -tonia

-to-be, -tome, -tomous, -tomy, -ton, -tonia, -tonic, -tor, -tory, -trice, -trich

Medical definitions for -tonia

-tonia

suff.

Degree or state of tonicity:myotonia.