/ Dictionary / Index I isohyet: Meaning and Definition of Find definitions for: i•so•hy•et Pronunciation: (ī"su-hī'ut), [key] — n. Meteorol. a line drawn on a map connecting points having equal rainfall at a certain time or for a stated period. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. isohume isoionic point Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language