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negative pressure

American  
[neg-uh-tiv presh-er] / ˈnɛg ə tɪv ˈprɛʃ ər /

noun

  1. a level of pressure below the surrounding atmospheric pressure.


negative pressure Scientific  
  1. See under pressure


Other Word Forms

  • negative-pressure adjective

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The researchers aimed to extend the time under positive pressure and reduce the period when negative pressure dominates.

From Science Daily • Apr. 2, 2026

That, in turn, can lead to forced selling, which puts additional negative pressure on the asset’s price.

From Barron's • Nov. 21, 2025

The incident was caused when smoke was pushed in the wrong direction because of negative pressure, according to Assistant City Administrator Kevin Iffland.

From BBC • Sep. 13, 2025

“The most popular cupping technique utilizes a negative pressure soft tissue treatment using suction to manipulate the skin and underlying tissue.”

From Salon • Aug. 10, 2024

If the wound in a vein is thus held open, the negative pressure during inspiration sucks air into the right side of the heart.

From Manual of Surgery Volume First: General Surgery. Sixth Edition. by Thomson, Alexis