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acari

[ak-uh-rahy]
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noun
  1. plural of acarus.
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acarus

[ak-er-uh s]
noun, plural ac·a·ri [ak-uh-rahy] /ˈæk əˌraɪ/.
  1. a mite, especially of the genus Acarus.
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Origin of acarus

1650–60; < New Latin < Greek ákari mite
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for acari

acarus

noun plural -ri (-ˌraɪ)
  1. 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
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Word Origin

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

acari in Medicine

Acarus

(ăkə-rəs)
n.
  1. A genus of mites.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.