/ Dictionary / Index B botryoidal: Meaning and Definition of Find definitions for: bot•ry•oi•dal Pronunciation: (bo"trē-oid'l), [key] — adj. Mineral. having the form of a bunch of grapes: botryoidal hematite. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: botryoidal (Thesaurus) bo tree botryomycosis Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language