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: a particulate substance
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Adjective
Haddad said the high temperature in the machine’s chamber and the long-torch flames partially burn the particulate matter in smoke, and the fans draw the remaining smoke away.
—Rick Hurd, The Mercury News, 10 Sep. 2024
In 2010, India’s Central Pollution Control Board found that the particulate matter in 180 Indian cities was six times higher than World Health Organization standards.
—Ira Trivedi, Foreign Affairs, 25 Feb. 2015
Noun
Then, researchers used an optical aerosol spectrometer and a proton-transfer-reaction time-of-flight mass spectrometer to measure the concentrations of two key indoor air pollutants: particulate matter (PM) and volatile organic compounds (VOCs).
—Sarah Garone, Health, 13 Dec. 2024
During that period — divided into June 6-8 and June 28-30 — the scientists found a 9.4-fold and 7.4-fold surge, respectively, in fine particulate matter pollution levels, in comparison to all other days in 2023.
—Sharon Udasin, The Hill, 13 Dec. 2024
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Cite this Entry
“Particulate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/particulate. Accessed 23 Dec. 2024.
Kids Definition
particulate
noun
par·tic·u·late
pər-ˈtik-yə-lət,
pär-,
-ˌlāt
: a substance made up of very small separate particles
Medical Definition
particulate
1 of 2 adjective
par·tic·u·late
pär-ˈtik-yə-lət
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
particulate
2 of 2 noun
: 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
Britannica.com: Encyclopedia article about particulate
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