acar(o)- Also acari-.
A mite or tick.
[Greek akari, mite or tick.]
Mites and ticks belong to the order or subclass, Acari (or Acarina); a member of the group is an acarid and the study of them is acarology. A substance that kills mites and ticks is an acaricide (Latin -cida, from caedere, kill).
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