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
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.
Minimally invasive procedures, such as laser interstitial thermal therapy, also known as LITT, allow a far smaller hole to be made in the skull. Kristen Jordan Shamus, Detroit Free Press, 10 Dec. 2024 Rose Dasgupta, 34, regularly gets bladder instillations to treat interstitial cystitis, a chronic condition that causes bladder pain. Julia Ries, SELF, 4 Dec. 2024 In his view, interstitial lactate is ideal for monitoring intensity during training, and for pacing during competition. Alex Hutchinson, Outside Online, 25 Nov. 2024 Indirect revenue increased by 42.5% to $12.4 million, primarily from growth in interstitial advertising. Quartz Bot, Quartz, 8 Nov. 2024 See all Example Sentences for interstitial 

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 25 Dec. 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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