air pressure

noun

Definition of air pressure

: pressure exerted by air:
a : atmospheric pressure
b : the pressure within a container due to the compression of atmospheric gases Air pressure in the car tire was measured in pounds per square inch.

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

First Known Use of air pressure

1837, in the meaning defined above

Learn More About air pressure

Time Traveler for air pressure

Time Traveler

The first known use of air pressure was in 1837

See more words from the same year

Dictionary Entries Near air pressure

airpower

air pressure

airproof

See More Nearby Entries 

Statistics for air pressure

Cite this Entry

“Air pressure.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/air%20pressure. Accessed 8 Dec. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

WORD OF THE DAY

Test Your Vocabulary

Name that Thing: Flower Edition

Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!