A tick or mite breeding in the hand, foot, or other part of the body. Obsolete.

In early use: any of various very small arachnids and insects. Later: any member of the group Acari of arachnids (other than those belonging to the…

A small insect; a mite. British regional in later use.

A mite or tick; spec. (in later use) a mite of the genus Acarus (family Acaridae). Also (in form Acarus): the genus itself.

= acarine, n. 1. Cf. acaridian, n.

Zoology. An arachnid of the group Acarina (or Acari); a mite or tick.

= acarine, n. 1. Now rare.

= acarine, n. 1. Cf. acaridan, n.

= acarine, n. 1.

An arachnid of the order (or subclass) Acari, which comprises the mites and ticks; spec. a mite of the family Acaridae.