par·​tic·​u·​late | \ pär-ˈti-kyə-lət How to pronounce particulate (audio) also -ˌlāt \

Definition of particulate

 (Entry 1 of 2)

: of or relating to minute separate particles



Definition of particulate (Entry 2 of 2)

: a particulate substance

Examples of particulate in a Sentence

Recent Examples on the Web: Adjective Of particular concern is how to limit diesel particulate matter from drifting into nearby neighborhoods as diesel trucks drove other routes – such as neighborhood streets -- to avoid the freeway during construction. oregonlive, 2 June 2020 Already, data has shown that cities are recording much lower levels of harmful microscopic particulate matter known as PM 2.5, and of nitrogen dioxide, which is released by vehicles and power plants. Amy Woodyatt, CNN, 12 May 2020 The American Lung Association ranks the Indianapolis, Carmel and Muncie metropolitan area as the 19th worst for year-round particulate pollution. Sarah Bowman, Indianapolis Star, 12 Apr. 2020 There’s some friction, in that the particulate pollution and carbon dioxide emissions of prescribed burns are counted as human-caused, while emissions from wildfires go in a separate category. Scott K. Johnson, Ars Technica, 21 Jan. 2020 Boland is a project system engineer developing the MAIA instrument, the Multi-Angle Imager for Aerosols that will characterize particulate matter in air pollution. Ashley Strickland, CNN, 1 May 2020 Another air pollutant of concern is particulate matter, microscopic airborne particles of dust or soot that linger in the air, often from burning fossil fuels. Dennis Pillion |, al, 26 Apr. 2020 Boland is a project system engineer developing the MAIA instrument, the Multi-Angle Imager for Aerosols that will characterize particulate matter in air pollution. Ashley Strickland, CNN, 24 Apr. 2020 The researchers found that on a long term basis, an increase in the average concentration of particulate matter of one microgram per cubic meter led to a 15 percent higher death rate from the new coronavirus. Ula Chrobak, Popular Science, 22 Apr. 2020 Recent Examples on the Web: Noun To really help vanquish the effects of smoke, Ms. Prunicki recommended seeking out an air purifier with a HEPA filter—an acronym for high-efficiency particulate air. Kathryn O’shea-evans, WSJ, 31 Aug. 2021 Yet most states have not mandated that buildings be equipped with better ventilation devices, such as high-efficiency particulate air (HEPA) filters. Will Raderman, STAT, 23 July 2021 The vacuum has a runtime of up to 40 minutes after a full charge, a flexible brush head with an LED headlight that works on both carpeted and hard floors, an extendable tube, and a high efficiency particulate air (HEPA) filter. Christina Butan,, 20 July 2021 This fine particulate matter also appears to increase the risk of getting Covid-19 and dying from it. Emily Mediate, STAT, 1 Sep. 2021 Others have shut their windows and doors tight to keep out harmful particulate matter in the air. Hayley Smith, Los Angeles Times, 27 Aug. 2021 In 1997, the county health department took that step in the Glades, tapping Florida International University to study particulate matter, a mixture of tiny, hazardous particles in the air. Lulu Ramadan, ProPublica, 22 Aug. 2021 Monitoring conducted by Legal Aid since 2020 near the GAF plant shows high levels of particulate matter no larger than 2.5 micrometers in diameter, what researchers call PM 2.5. Dallas News, 22 Aug. 2021 The chart below shows the average levels of particulate matter 2.5, or PM2.5, in the Lake Tahoe air basin for the June 1-Aug. 17 period each year for the past decade. Kellie Hwang, San Francisco Chronicle, 18 Aug. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'particulate.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of particulate


1870, in the meaning defined above


1942, in the meaning defined above

History and Etymology for particulate


Latin particula

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Time Traveler for particulate

Time Traveler

The first known use of particulate was in 1870

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Dictionary Entries Near particulate

particular tenant


particulate inheritance

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Statistics for particulate

Cite this Entry

“Particulate.” Dictionary, Merriam-Webster, Accessed 23 Sep. 2021.

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More Definitions for particulate


par·​tic·​u·​late | \ pär-ˈtik-yə-lət How to pronounce particulate (audio) \

Medical Definition of particulate

 (Entry 1 of 2)

1 : of, relating to, or existing in the form of minute separate particles dust, smoke, and other particulate matter
2 : of or relating to particulate inheritance the particulate theory of heredity— Julian Huxley



Medical Definition of particulate (Entry 2 of 2)

: a particulate substance emission of particulates by car engines cytoplasmic particulates in the cell

More from Merriam-Webster on particulate

Britannica English: Translation of particulate for Arabic Speakers Encyclopedia article about particulate


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