- a mite, especially of the genus Acarus.
Origin of acarus
1650–60; < New Latin < Greek ákari mite
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for acarus
Acarus farinæ DeGeer, as its name indicates, is found in flour.Our Common Insects
Alpheus Spring Packard
Yet the Acarus has eight legs, like a spider, and the harvest-bug six, like an insect.Everyday Objects
W. H. Davenport Adams
It would be an Acarus, he observes, but it has only six legs.An Introduction to Entomology: Vol. I (of 4)
The Acarus Scabiei causes itch, but fortunately it is rare in America.Essays In Pastoral Medicine
It has not been demonstrated that the acarus so common in flour has had any injurious effect when eaten.
- any of the free-living mites of the widely distributed genus Acarus, several of which, esp A. siro, are serious pests of stored flour, grain, etc
C17: New Latin, from Greek akari a small thing, a mite
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
- A genus of mites.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.