/ Dictionary / Index H hypha: Meaning and Definition of Find definitions for: hy•pha Pronunciation: (hī'fu), [key] — pl. -phae (in a fungus) one of the threadlike elements of the mycelium. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: hypha (Thesaurus) hypethral hyphema Related Content Daily Word Quiz: philanthropy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language