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 That’s one of the of the interstitial videos that will line the Michigan Central presentation, spotlighting an array of Detroit artists far beyond the lineup that has been announced. Brian McCollum, Detroit Free Press, 10 June 2024 Once upon a time, back when this interstitial season was invented to bridge the gap between the fall and spring runway shows, cruise collections seemed to contain clothes that were more wearable or practical than designs shown during the regular seasons. Vanessa Friedman, New York Times, 7 June 2024 The actress shows up for some interstitial Shakespeare line readings and a genius post-book chat. Marshall Heyman, Vulture, 23 May 2024 The second study looked at 306 patients with advanced COPD, heart failure or interstitial lung disease. Lydia Denworth, Scientific American, 14 May 2024 See all Example Sentences for interstitial 

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 22 Jul. 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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