/ Dictionary / Index S scotoma: Meaning and Definition of Find definitions for: sco•to•ma Pronunciation: (skō-tō'mu), [key] — pl. -mas, -ma•ta loss of vision in a part of the visual field; blind spot. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: scotoma (Thesaurus) scoto- scotopia Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language