/ Dictionary / Index H hypomyotonia: Meaning and Definition of Find definitions for: hy•po•my•o•to•ni•a Pronunciation: (hī"pu-mī"u-tō'nē-u), [key] — n. abnormally diminished muscular tone. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hypomotility hyponasty Related Content Daily Word Quiz: abyss Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language