noun, plural ac·a·ri [ak-uh-rahy] /ˈæk əˌraɪ/.
Origin of acarus
Examples from the Web for acarus
The Acarus autumnalis, or mower's mite, has been found in the skin of this part, and it is capable of causing great distress.
Acarus sub ipsa pustula minim qurendus est, sed longius recessit, sequendo rugam cuticul observatur.An Introduction to Entomology: Vol. I (of 4)|William Kirby
A parasite known as the Acarus folliculorum infests the sebaceous glands.Cooley's Practical Receipts, Volume II|Arnold Cooley
Acarus farinæ DeGeer, as its name indicates, is found in flour.Our Common Insects|Alpheus Spring Packard
This acarus remains but a short time on the person, and generally makes its appearance during the night.Animal Parasites and Messmates|P. J. Van Beneden