What does particulate matter mean?

Definitions for particulate matter
par·tic·u·late mat·ter

This dictionary definitions page includes all the possible meanings, example usage and translations of the word particulate matter.

Princeton's WordNet

  1. particulate, particulate matternoun

    a small discrete mass of solid or liquid matter that remains individually dispersed in gas or liquid emissions (usually considered to be an atmospheric pollutant)


  1. particulate matternoun

    Any solid or liquid in a finely subdivided state, especially when considered as an atmospheric pollutant.


  1. particulate matter

    Particulate matter, also known as PM, refers to a complex mixture of extremely small particles and liquid droplets suspended in the air. These particles can be made up of various elements such as acids, organic chemicals, metals, and dust or soil, and can vary largely in size, origin, and composition. They are typically categorised by their diameter and are a common component of air pollution, posing potential health risks when inhaled.

U.S. National Library of Medicine

  1. Particulate Matter

    Particles of any solid substance, generally under 30 microns in size, often noted as PM30. There is special concern with PM1 which can get down to PULMONARY ALVEOLI and induce MACROPHAGE ACTIVATION and PHAGOCYTOSIS leading to FOREIGN BODY REACTION and LUNG DISEASES.

Editors Contribution

  1. Particulate matter

    Particulate matter: very small, solid particles made up of different substances. These are dangerous, because they can get lodged deep within human pulmonary systems, creating many health problems.

    Submitted by rinat on June 24, 2020  

Matched Categories

How to pronounce particulate matter?

How to say particulate matter in sign language?


  1. Chaldean Numerology

    The numerical value of particulate matter in Chaldean Numerology is: 4

  2. Pythagorean Numerology

    The numerical value of particulate matter in Pythagorean Numerology is: 5

Examples of particulate matter in a Sentence

  1. Ashima:

    Few memories are deep seated like particulate matter...easy to inhale but never exhale fully!

  2. Robert Brook:

    While most people can readily observe and believe that air pollution may cause lung diseases, it is in fact cardiovascular diseases that are the largest adverse health effect of fine particulate matter exposure.

  3. Mary Njenga:

    The temperatures inside the boilers of tea factories are so high, they are able to more fully burn the particulate matter and the carbon dioxide so that little is released.

  4. Albert Rizzo:

    The particulate matter is what leads the airways to be a very fertile ground for uninvited infection like the Covid virus to get into our airway, the immune system is only geared up to try to fight the effects of a particulate matter and now it has a virus that it has to trigger against as well.

  5. David Reichmuth:

    When you think about particulate matter, you might first think about dust, but we're talking about particles that are much smaller, it gets deep into your lungs and bloodstream. It literally shortens people's lives.

Translations for particulate matter

From our Multilingual Translation Dictionary

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"particulate matter." Definitions.net. STANDS4 LLC, 2023. Web. 4 Dec. 2023. <https://www.definitions.net/definition/particulate+matter>.

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