/ Dictionary / Index H hyetal: Meaning and Definition of Find definitions for: hy•e•tal Pronunciation: (hī'i-tl), [key] — adj. of or pertaining to rain or rainfall. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hyenoid hyeto- Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language