in situ

adverb or adjective

in si·​tu (ˌ)in-ˈsī-(ˌ)tü How to pronounce in situ (audio)
-ˈsi-,
-(ˌ)tyü How to pronounce in situ (audio)
 also  -ˈsē-,
-(ˌ)chü How to pronounce in situ (audio)
: 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 An early champion of Surrealism, artworks still in situ include Dali’s prototype Mae West sofa and a lobster telephone. Sarah Turner, Forbes, 30 Sep. 2024 His painting The Bedroom inside the Yellow House showed his paintings in situ. Joanne Shurvell, Forbes, 11 Sep. 2024 The cells lining the milk ducts turn malignant (cancerous) but stay in place (in situ). Mya Abraham, VIBE.com, 10 Sep. 2024 The device is a fast way to charge a phone in situ and is available in black and white. Mark Sparrow, Forbes, 6 Sep. 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.

Word History

Etymology

Latin, in position

First Known Use

1740, in the meaning defined above

Time Traveler
The first known use of in situ was in 1740

Dictionary Entries Near in situ

Cite this Entry

“In situ.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/in%20situ. Accessed 5 Oct. 2024.

Kids Definition

in situ

adverb or adjective
in si·​tu (ˈ)in-ˈsī-t(y)ü How to pronounce in situ (audio)
-ˈsi-
: in the natural or original position
the cancer cells remained in situ
Etymology

Latin, "in position"

Medical Definition

in situ

adverb or adjective
in si·​tu
(ˈ)in-ˈsī-(ˌ)t(y)ü, -ˈsi- also -ˈsē-, -(ˌ)chü
: in the natural or original position or place
an in situ cancer confined to the breast duct
see carcinoma in situ
Last Updated: - Updated example sentences
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