/ Dictionary / Index A acaroid: Meaning and Definition of Find definitions for: ac•a•roid Pronunciation: (ak'u-roid"), [key] — adj. resembling a mite or tick. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Acarnania acaroid resin Related Content Daily Word Quiz: philtrum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language