interstitial
adjective
in·ter·sti·tial
ˌin-tər-ˈsti-shəl 
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
Carl Sullivan2
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
Examples of interstitial in a Sentence
Recent Examples on the Web
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
Symptoms of interstitial cystitis include pelvic and bladder pain and feeling the need to urinate frequently.62
Research shows dimethyl sulfoxide can improve irritation of the bladder wall, which helps with pain and how much fluid the bladder can comfortably hold.
—Kirstyn Hill, Pharmd, Mph, Health, 22 Sep. 2024
So emphatic are the images that the interstitial dialogue cards are hardly necessary.
—Declan Gallagher, EW.com, 7 Sep. 2024
See all Example Sentences for interstitial 
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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
Symptoms of interstitial cystitis include pelvic and bladder pain and feeling the need to urinate frequently.62
Research shows dimethyl sulfoxide can improve irritation of the bladder wall, which helps with pain and how much fluid the bladder can comfortably hold.
—Kirstyn Hill, Pharmd, Mph, Health, 22 Sep. 2024
So emphatic are the images that the interstitial dialogue cards are hardly necessary.
—Declan Gallagher, EW.com, 7 Sep. 2024
See all Example Sentences for interstitial
Dictionary Entries Near interstitial
Cite this Entry
“Interstitial.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/interstitial. Accessed 17 Dec. 2024.
Copy CitationKids Definition
interstitial
adjective
in·ter·sti·tial
ˌint-ər-ˈstish-əl
: relating to or located in the interstices
Medical Definition
interstitial
adjective
in·ter·sti·tial
ˌint-ər-ˈstish-əl
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
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