noun ac·a·rus \ˈa-kə-rəs\
plural ac·a·ri\-ˌrī\

Definition of ACARUS

:  mite; especially :  one of a formerly extensive genus (Acarus)

Origin of ACARUS

New Latin, genus name, from Greek akari, a mite
First Known Use: 1658


noun ac·a·rus \ˈak-ə-rəs\   (Medical Dictionary)

Medical Definition of ACARUS

capitalized :  a genus of arachnids including a number of small mites and formerly including all mites and ticks
plural ac·a·ri \-ˌrī, -ˌrē\ :  mite; especially :  one of the genus Acarus or formerly included in this genus


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