/ Dictionary / Index H heliophyte: Meaning and Definition of Find definitions for: he•li•o•phyte Pronunciation: (hē'lē-u-fīt"), [key] — n. Bot. a plant that grows best in full sunlight. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. heliopause Heliopolis Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language