in situ

in situ /in si·tu/ (in si´too) [L.] in its normal place; confined to the site of origin.

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in si·tu (n st)

adj.

1. In the original position.

2. Confined to the site of origin.

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in situ adv.

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in situ (in sē´too),

n in the natural or original position. The phrase comes from the Latin for “in position.” In dental and medical work, the phrase often describes work done on a dental or body structure in the patient (e.g., almost all dental fillings are done
in situ).

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in situ

[L.] in its normal place; confined to the site of origin.

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in situ hybridization

see in situ hybridization of nucleic acid.