/ Dictionary / Index S spectrohelioscope: Meaning and Definition of Find definitions for: spec•tro•he•li•o•scope Pronunciation: (spek"trō-hē'lē-u-skōp"), [key] — n. a spectroheliograph. a similar instrument, used for visual instead of photographic observations. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. spectroheliograph spectrology Related Content Daily Word Quiz: pristine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language