/ Dictionary / Index B boletus: Meaning and Definition of Find definitions for: bo•le•tus Pronunciation: (bō-lē'tus), [key] — pl. -tus•es, -ti any mushroomlike fungus of the genus Boletus, having an easily separable layer of tubes on the underside of the cap or pileus. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: boletus (Thesaurus) boletic acid Boleyn Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language