1
general::
In the meantime, as in Arthur's in Israel, so in the interim Judy will handle their business. [Second half of 1500s]
American Heritage Idioms
2
general::
Phrase(s): in the interim (between things)
in the meantime; in the time between the ending of something and the beginning of something else. • In the interim between her morning and afternoon classes, Susan rushed home to get a book she had forgotten. • My favorite show starts in five minutes, but I’ll talk to you in the interim.
McGrawhill's American Idioms And Phrasal Verbs