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
Most Deutsche employees are required to work three days in the office while managing directors need to be in situ four days a week.
—
Byryan Hogg, Fortune Europe, 18 June 2024
When Artemis astronauts are finally able to gather samples of volcanic material from the Moon in situ, who knows what will come to the surface?
—Elizabeth Rayne, Ars Technica, 11 May 2024
Harvard's Conroy was part of a team that measured the in situ stars' chemistry and found two populations: one group was ancient, metal-poor, moving chaotically and forming stars slowly; the other was younger, metal-rich, moving coherently and forming stars 10 times faster.
—Ann Finkbeiner, Scientific American, 1 Feb. 2024
The team has also been photographing the vessels’ remains in situ and studying the site using ground-penetrating radar, a non-invasive technology used to examine historic sites without causing damage.
—Julia Binswanger, Smithsonian Magazine, 4 June 2024
See all Example Sentences for in situ 
Byryan Hogg, Fortune Europe, 18 June 2024
When Artemis astronauts are finally able to gather samples of volcanic material from the Moon in situ, who knows what will come to the surface?
—Elizabeth Rayne, Ars Technica, 11 May 2024
Harvard's Conroy was part of a team that measured the in situ stars' chemistry and found two populations: one group was ancient, metal-poor, moving chaotically and forming stars slowly; the other was younger, metal-rich, moving coherently and forming stars 10 times faster.
—Ann Finkbeiner, Scientific American, 1 Feb. 2024
The team has also been photographing the vessels’ remains in situ and studying the site using ground-penetrating radar, a non-invasive technology used to examine historic sites without causing damage.
—Julia Binswanger, Smithsonian Magazine, 4 June 2024
See all Example Sentences for in situ
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'in situ.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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Cite this Entry
“In situ.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/in%20situ. Accessed 4 Jul. 2024.
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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