/ Dictionary / Index A aroid: Meaning and Definition of Find definitions for: ar•oid Pronunciation: (ar'oid, âr'-), [key] — Bot. Bot. —adj. araceous. —n. any plant of the arum family. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: aroid (Thesaurus) Arnulf aroint Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language