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 His death, at Maine Medical Center, was caused by complications of interstitial lung disease, his wife, Susan Bell Dennett, said. Jonathan Kandell, New York Times, 19 Apr. 2024 This includes conditions that require patients to use oxygen at home, like chronic obstructive pulmonary disease (COPD) and interstitial pulmonary fibrosis, as well as conditions where oxygenation may be impaired, such as congestive heart failure and chronic renal failure. Sarah Bradley, Health, 16 Apr. 2024 The cerebrospinal fluid picks up all of the waste products in the spaces between neurons before being flushed out again through the same channels, leaving behind clean interstitial fluid. William A. Haseltine, Forbes, 29 Feb. 2024 The existing black aluminum windows were wrapped with jamb liners, casing, and connected with interstitial panels to weave them into the reconfigured spaces. Sarah Yang, Sunset Magazine, 3 Apr. 2024 Some of the most common causes include lung damage from congestive heart failure, diffuse alveolar hemorrhage, interstitial lung diseases, lung cancer, and viral pneumonia.49 Congestive Heart Failure Heart failure occurs if your heart is unable to pump blood throughout your body efficiently. Leah Groth, Health, 30 Mar. 2024 The cause was interstitial lung disease, a lung condition complicated by double pneumonia, family members announced in a statement posted to social media. Darrell Smith, Sacramento Bee, 28 Mar. 2024 In fact, at bigger publishers, the job of a book’s visual design might be broken down further, with a whole other employee tasked with designing the inside of the book, from the look of chapter pages to the interstitial marks separating sections to the patterns on the inside of the covers. Hazlitt, 27 Mar. 2024 Typically at an episode’s end, drone cameras offer long, luscious, interstitial looks at Vacationland: The trees begin turning in autumn, the light glints off the water, the views stretch on forever. Olivia McCormack, Washington Post, 18 Mar. 2024

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 21 May. 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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