Definitions

1. noun

A member of the order Acari, which includes mites and ticks.

“The acarid that infested the pet store had to be exterminated.”

2. noun

A type of spider mite or dust mite.

“The acarid infestation in the carpet was a major health concern.”

3. noun

A type of arachnid, especially a mite or tick.

“The acarid was identified as a common pest in the garden.”