English

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Etymology

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From non- +‎ exhaust.

Adjective

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non-exhaust (not comparable)

  1. Alternative form of nonexhaust.
    • 2020 September 9, Anthony Lambert, “Winning passengers back: Getting the public on board...”, in Rail, page 43:
      As a Government Office for Science report says: "Non-exhaust particulate matter emissions (e.g. tyre wear, brake wear and road dust resuspension) account for approximately 50%-60% of the vehicle emissions that contribute to poor air quality."