Any member of the subclass Acari (aka Acarina): thus, a mite or a tick; specifically, any mite of the genus Acarus.
Learned borrowing from translingual Acarus, from Ancient Greek ἀκαρί (akarí, “cheese mite, tick”).
Oefen met het spreken en memoriseren van " acarus " en vele andere woorden en zinnen in Engels .