[ak-er-uh s]

noun, plural ac·a·ri [ak-uh-rahy] /ˈæk əˌraɪ/.

a mite, especially of the genus Acarus.

Nearby words

  1. acarology,
  2. acarophobia,
  3. acarpellous,
  4. acarpelous,
  5. acarpous,
  6. acarus folliculorum,
  7. acarus scabiei,
  8. acarus tritici,
  9. acaryote,
  10. acas

Origin of acarus

1650–60; < New Latin < Greek ákari mite Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for acarus

British Dictionary definitions for acarus


noun plural -ri (-ˌraɪ)

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

Word Origin for acarus

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

Medicine definitions for acarus




A genus of mites.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.