in situ
adverb or adjective
in si·tu
(ˌ)in-ˈsī-(ˌ)tü 
-ˈsi-,
-(ˌ)tyü
also -ˈsē-,
-(ˌ)chü
: in the natural or original position or place
an in situ cancer confined to the breast duct
Examples of in situ in a Sentence
Recent Examples on the Web
Their startup is developing machine learning and artificial intelligence capabilities that will automate the assaying process for minerals in situ (on site).
—
Greg Autry, Forbes, 9 Dec. 2024
When on the Red Planet, in situ resource utilization (ISRU) can create new rocket fuel.
—Keith Cooper, Space.com, 3 Feb. 2025
One possibility is to build a complex at the site so that the mosaic can remain in situ.
—George Nelson For Artnews, Robb Report, 7 Jan. 2025
Project engineers argued the historical remnants needed to be moved to continue construction, while cultural preservationists insisted the artifacts remain in situ as a monument to the city’s history visible in their original setting.
—Leslie Katz, Forbes, 6 Dec. 2024
See All Example Sentences for in situ
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Greg Autry, Forbes, 9 Dec. 2024
When on the Red Planet, in situ resource utilization (ISRU) can create new rocket fuel.
—Keith Cooper, Space.com, 3 Feb. 2025
One possibility is to build a complex at the site so that the mosaic can remain in situ.
—George Nelson For Artnews, Robb Report, 7 Jan. 2025
Project engineers argued the historical remnants needed to be moved to continue construction, while cultural preservationists insisted the artifacts remain in situ as a monument to the city’s history visible in their original setting.
—Leslie Katz, Forbes, 6 Dec. 2024
See All Example Sentences for in situ
Cite this Entry
“In situ.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/in%20situ. Accessed 14 Apr. 2025.
Copy CitationKids Definition
in situ
adverb or adjective
in si·tu
(ˈ)in-ˈsī-t(y)ü
-ˈsi-
: in the natural or original position
the cancer cells remained in situ
Etymology
Latin, "in position"
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