[per-tik-yuh-lit, -leyt, puh-tik-, pahr-]
of, pertaining to, or composed of distinct particles.
a separate and distinct particle.
a material composed of such particles.
the aggregate of such particles, especially as produced by one source: tests to analyze diesel particulates.
Meteorology. solid or liquid particles suspended in the atmosphere, especially pollutants.

1870–75; < Neo-Latin particulātus, equivalent to Latin particul(a) particle + -ātus -ate1

nonparticulate, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
particulate (pɑːˈtɪkjʊlɪt, -ˌleɪt)
1.  a substance consisting of separate particles
2.  of or made up of separate particles
3.  genetics of, relating to, or designating inheritance of characteristics, esp with emphasis on the role of genes

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American Heritage
Medical Dictionary

particulate par·tic·u·late (pər-tĭk'yə-lĭt, -lāt', pär-)
Of or occurring in the form of fine particles. n.
A particulate substance.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
particulate   (pər-tĭk'yə-lĭt)  Pronunciation Key 
Adjective   Formed of very small, separate particles. Dust and soot are forms of particulate matter.

  1. A very small particle, as of dust or soot. Particulates that are given off by the burning of oil, gasoline, and other fuels can remain suspended in the atmosphere for long periods, where they are a major component of air pollution and smog.

  2. A substance or suspension composed of such particles, such as sand or smoke.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences for particulates
Settleable solids are the particulates that settle out of a still fluid.
Residual particulates from sanding should be thoroughly cleaned from pieces.
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