Meaning of In situ
What is In situ:
On site It is a locution of Latin origin that means ‘in the place’, ‘in the place’, ‘on the ground’.
It is usually used to refer to something that is observed, that is found or that is executed in the very place where it is or where it originates from.
Thus, for example, in criminology an investigation in situ would be one that is carried out at the crime scene, while in administration an audit in situ it would be the one that takes place in the institution or body that is going to be audited.
On site Y ex situ
On site Y ex situ they are antonyms. On site means 'in the proper place', while ex situ it means ‘out of place’. In the scientific field, for example, these concepts can be applied to differentiate methods or techniques whose observations are made in the place where the object of study is located, in its natural conditions (in situ), or out of it (ex situ), usually in a laboratory with artificial conditions and a controlled environment.
On site in medicine
In medicine, in situ literally means 'in their own place'. In this sense, for example, when talking about a carcinoma in situ, this means that it is a cancer that has not metastasized and, therefore, has not invaded nearby tissues.
On site in Paleontology
Within the scope of paleontology, the expression in situ It is used to indicate the position of a fossil that is in a stratigraphic position, that is, in the sedimentary rock of a terrain. In this sense, it is opposed to the location ex situ, according to which the fossil is rather displaced from its original location.
On site in Civil Engineering
In the field of civil engineering, it is said that an operation or work is in situ when it takes place on the construction site itself.