|a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.|
|an extraordinary or unusual thing, person, or event; an exceptional example or instance.|
in situ in si·tu (ĭn sī't&oomacr;)
In the original position.
Confined to the site of origin.
In the original place or arrangement: “The body was left in situ until the police arrived.” From Latin, meaning “in position.”