acaridan,a.andn.Zool.|əˈkærɪdən| [f. Acarid-æ + -an.] Of or belonging to the Acaridæ or mites. n. A member of the mite family. 1835Kirby Habits & Inst. of An. II. xix. 306 The bat is infested by another parasite, placed by Dr. Leach at the end of the Acaridans.