/ Dictionary / Index A arborescent: Meaning and Definition of Find definitions for: ar•bo•res•cent Pronunciation: (är"bu-res'unt), [key] — adj. treelike in size and form. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: arborescent (Thesaurus) arboreous arboretum Related Content Daily Word Quiz: pugilist Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language