/ Dictionary / Index S semiautonomous: Meaning and Definition of Find definitions for: sem•i•au•ton•o•mous Pronunciation: (sem"ē-ô-ton'u-mus, sem"ī-), [key] — adj. partially self-governing, esp. with reference to internal affairs. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. semiautomatic semiautonomy Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language