In-situ

[in sahy-too, -tyoo, see-; Latin in sit-oo] /ɪn ˈsaɪ tu, -tyu, ˈsi-; Latin ɪn ˈsɪt u/

adverb, adjective
1.
situated in the original, natural, or existing place or position:
The archaeologists were able to date the vase because it was found in situ.
2.
Medicine/Medical.

/ɪn ˈsɪtjuː/
adverb, adjective (postpositive)
1.
in the natural, original, or appropriate position
2.
(pathol) (esp of a cancerous growth or tumour) not seen to be spreading from a localized position

Latin, literally “in its (original) place or position” (see situate (v.)).

in situ in si·tu (ĭn sī’tōō)
adj.

in situ adv.
in situ [(in seye-tooh, in sit-ooh)]

In the original place or arrangement: “The body was left in situ until the police arrived.” From Latin, meaning “in position.”