Definition of acarus in English:

acarus

noun

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

Origin

Mid 17th century; earliest use found in Samuel Purchas (c1605–1659). From post-classical Latin acarus from ancient Greek ἄκαρι mite from ἀκαρής minute, too short for cutting from ἀ- + καρ-, aorist stem of κείρειν to cut.

Pronunciation:

acarus

/ˈakərəs/