/ Dictionary / Index A acarid: Meaning and Definition of Find definitions for: ac•a•rid Pronunciation: (ak'u-rid), [key] — n. an acarine, esp. a mite of the family Acaridae. —adj. of or pertaining to an acarid. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: acarid (Thesaurus) acaricide acarine Related Content Daily Word Quiz: entomology Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language