In situ

From Academic Kids

In situ ("in place" in Latin), a term used in:

  • biology, where it means to examine the phenomenon exactly in place where it occurs (without removing it in some special medium etc.). Usually means something intermediate between in vivo and in vitro. For example, examining a cell within a whole organ intact and under perfusion may mean in situ investigation. This is not obviously in vivo experiment because an animal is sacrificed, but it is not the same that to work with this cell alone (which may be a perfect case of in vitro experiment).
  • environmental engineering where a clean up or remediation of a polluted site is performed using and stimulating the natural processes in the soil, contrary to ex situ where contaminated soil is excavated and cleaned elsewhere, off site.

See also

ja:In situ

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