interstitial

adjective

in·​ter·​sti·​tial ˌin-tər-ˈsti-shəl How to pronounce interstitial (audio)
1
: occurring in or being an interval or intervening space or segment : of, relating to, or forming an interstice
an interstitial space
… the site has been running interstitial ads, which consist of a full page of advertising between editorial pages, for a little more than a year.Carl Sullivan
2
a
: situated within but not restricted to or characteristic of a particular organ or tissue
used especially of fibrous tissue
b
: affecting the interstitial tissues of an organ or part
interstitial cystitis
3
: being or relating to a crystalline compound in which usually small atoms or ions of a nonmetal occupy holes between the larger metal atoms or ions in the crystal lattice
interstitially adverb

Examples of interstitial in a Sentence

Recent Examples on the Web Ad-free videos have been getting the most aggressive promotion lately, with Google cracking down on ad-block users by blocking video playback and displaying interstitial pop-ups. Ron Amadeo, Ars Technica, 2 Feb. 2024 The study observed 12 healthy cats and 20 cats suffering from feline interstitial cystitis, a type of bladder inflammation. Donna Sarkar, Discover Magazine, 30 Nov. 2023 Denny Laine, the British singer-guitarist best known for his work with Paul McCartney & Wings and the Moody Blues, has died after a long battle with interstitial lung disease, according to a social media post from his wife. Chris Morris, Variety, 5 Dec. 2023 Key Takeaways People with asthma, COPD, and interstitial lung disease may have a weaker response to a COVID-19 vaccine than people who do not have lung conditions. Nick Blackmer, Verywell Health, 30 Nov. 2023 Madonna returned the acknowledgment on Saturday, playing a bit of the same remix during an interstitial moment. Ben Sisario, New York Times, 14 Oct. 2023 One of her projects is documenting LGBT people, some of whom provide the movie interstitial insights about what the earlier doc and its characters meant to them. Lisa Kennedy, Variety, 16 Nov. 2023 On rare occasions, penicillins can cause acute interstitial nephritis, an inflammatory kidney condition most often caused by an abnormal immune reaction to medications. Jenny Sweigard, Verywell Health, 16 Nov. 2023 At a hospital in Seoul that December, Roy was diagnosed with interstitial lung disease, an incurable condition that has been linked to exposure to industrial pollutants. Max Kim, Los Angeles Times, 30 Oct. 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'interstitial.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1646, in the meaning defined at sense 1

Time Traveler
The first known use of interstitial was in 1646

Dictionary Entries Near interstitial

Cite this Entry

“Interstitial.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/interstitial. Accessed 19 Mar. 2024.

Kids Definition

interstitial

adjective
in·​ter·​sti·​tial ˌint-ər-ˈstish-əl How to pronounce interstitial (audio)
: relating to or located in the interstices
interstitially adverb

Medical Definition

interstitial

adjective
in·​ter·​sti·​tial ˌint-ər-ˈstish-əl How to pronounce interstitial (audio)
1
: situated within but not restricted to or characteristic of a particular organ or tissue
used especially of fibrous tissue
2
: affecting the interstitial tissues of an organ or part
interstitial hepatitis
3
: occurring in the part of a fallopian tube in the wall of the uterus
interstitial pregnancy
interstitially adverb

More from Merriam-Webster on interstitial

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