interfaculty
adjective
in·ter·fac·ul·ty ˌin-tər-ˈfa-kəl-tē 
variants or inter-faculty
: involving faculty (see faculty sense 3c) from two or more departments or disciplines
an interfaculty picnic
interfaculty collaboration
… the journal of the interfaculty [=interdisciplinary] Arts & Science program …
Daniel Galef
Daniel Galef
Word History
First Known Use
1901, in the meaning defined above