In situ and In-situ

In situ adverb - In the original or natural place or site.

In-situ is a synonym for in situ. In some cases you can use "In-situ" instead an adjective phrase "In situ".

In-situ adjective - Being in the original position; not having been moved.

In situ is a synonym for in-situ. You can use "In situ" instead the phrase "In-situ" as an adjective or an adverb.