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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.

Much of the frying process occurs under negative pressure, which increases the tendency for oil to be pulled into the food.

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 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

To suck blood from the wound, they create negative pressure by swallowing.

From Science Daily • May 2, 2024

The rapid cooling of the air in the clean end of the pipette creates a negative pressure, and the blood is sucked back into the pipette, leaving the soiled end free from blood.

From The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. by Eyre, J. W. H. (John William Henry)