in re prep
: in the matter of used in the title or name of a case where the proceeding is in rem or quasi in rem and not in personam (as in a matter involving a probate or bankruptcy estate, a guardianship, or an application for laying out a public highway) and occasionally in the title of an ex parte proceeding (as in an application for a writ of habeas corpus)
Source: Merriam-Webster's Dictionary of Law ©1996. Merriam-Webster, Incorporated. Published under license with Merriam-Webster, Incorporated.