permeate

verb

per·​me·​ate ˈpər-mē-ˌāt How to pronounce permeate (audio)
permeated; permeating

intransitive verb

: to diffuse through or penetrate something

transitive verb

1
: to spread or diffuse through
a room permeated with tobacco smoke
2
: to pass through the pores or interstices of
permeative adjective

Did you know?

Permeate was borrowed into English in the 17th century from Latin permeatus, which comes from the prefix per- ("through") and the verb meare, meaning "to go" or "to pass." Meare hasn't exactly permeated English. Aside from permeate itself, its other English descendants include the relatively common permeable as well as the medical meatus ("a natural body passage") and the downright rare irremeable ("offering no possibility of return").

Examples of permeate in a Sentence

The water permeated the sand. The smell of baking bread permeated the kitchen. A feeling of anxiety permeated the office as we rushed to meet the deadline. The rain permeated through the soil.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Devices have permeated all aspects of sleep, Paruthi said. Nancy Walecki, The Atlantic, 25 Oct. 2025 Top-of-the-line technology has permeated every aspect of our lives, fashion choices included. Stacia Datskovska, Footwear News, 24 Oct. 2025 Music fans are still mourning the death of legendary singer D’Angelo and lauding how the vastness of his musical experiences, from gospel to funk to soul, permeates his catalog. Andre Gee, Rolling Stone, 23 Oct. 2025 Gauthier Borsarello, fashion director of the French menswear magazine L’Ettiquetteand creative director of the menswear brand Fursac, traces French prep’s origins back to the end of the Second World War, when American pop culture first began to permeate France via music and films. Eric Twardzik, Robb Report, 22 Oct. 2025 See All Example Sentences for permeate

Word History

Etymology

Latin permeatus, past participle of permeare, from per- through + meare to go, pass; akin to Middle Welsh mynet to go, Czech míjet to pass

First Known Use

1656, in the meaning defined at intransitive sense

Time Traveler
The first known use of permeate was in 1656

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Cite this Entry

“Permeate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/permeate. Accessed 27 Oct. 2025.

Kids Definition

permeate

verb
per·​me·​ate ˈpər-mē-ˌāt How to pronounce permeate (audio)
permeated; permeating
1
: to spread throughout
a room permeated with the scent of flowers
2
: to pass through something which has pores or small openings or is of loose texture : seep through
water permeates sand
permeation
ˌpər-mē-ˈā-shən
noun

Medical Definition

permeate

verb
per·​me·​ate ˈpər-mē-ˌāt How to pronounce permeate (audio)
permeated; permeating

intransitive verb

: to diffuse through or penetrate something

transitive verb

: to pass through the pores or interstices of

More from Merriam-Webster on permeate

Last Updated: - Updated example sentences
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