What is the meaning of Situ?

Only used in in situ.

Only used in ex situ.

Short for situation.

masculine ablative singular of situs

first-person singular present/past indicative of sist

here

custom

habit

until

there (not very far from speaker)

genitive singular of sit

dative singular of sito

inflection of sit:

  1. indefinite masculine/neuter dative/locative singular
  2. feminine accusative singular

indefinite masculine/neuter dative/locative singular

feminine accusative singular

dative/locative singular of sito

lake (large, landlocked, naturally occurring stretch of water)

Source: wiktionary.org