/ Dictionary / Index S self-sustaining: Meaning and Definition of Find definitions for: self-sus•tain•ing Pronunciation: (self'su-stā'ning, self"-), [key] — adj. self-supporting. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: self-sustaining (Thesaurus) self-surrender self-tapping screw 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