What do you call the professors that are hired by two different departments? Say, a history professor who is also a chemistry professor.
Also, in reality how would one do that?
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Sign up to join this communityWhat do you call the professors that are hired by two different departments? Say, a history professor who is also a chemistry professor.
Also, in reality how would one do that?
It's usually called a joint, secondary or courtesy appointment. The purpose is to allow faculty to teach or do research in cross-disciplinary topics. Someone with a joint appointment is usually a full member of both departments and funded by both; secondary and courtesy appointments reflect a looser relationship.
Their formal title will be a list of their appointments, e.g., "Professor, Electrical Engineering; Professor (courtesy), Applied Physics".
To an audience, they might be introduced as "Professor of Electrical Engineering and, by courtesy, of Applied Physics", but beyond that, there's no special term for someone who holds this type of appointment. They're still just called a professor, same as the rest.
In my experience, it is common with the caveat that one of the fields is their primary affiliation (for instance, their office may be in that department), but they teach classes in some other field as well. On the professor's website you may see that they state the non-primary department(s) as a "Secondary Appointment" (or any of the other terms Nicole Hamilton mentions).
Regardless of whether they are officially affiliated with multiple departments, many professors have expertise in two different fields or in the intersection of two different fields (e.g. computational biology, philosophy of physics, applications of statistics to medicine, etc.)
At my US university, there is a difference based on how their salary is drawn (where the tenure line lies). If they are jointly paid and the tenure case is jointly determined, they have a joint appointment. If the appointment is courtesy, one department pays and evaluates and they have a secondary appointment.
In either case, they are merely referred to in emails, conversation, or other normal correspondence as Professor, just like other faculty. (Note this is not the U.K. where "Professor" is a more rarified title.) In formal title writing, they would be (Assistant/Associate) Professor of X and Y, where X is their primary appointment, if Y is secondary. Order can be either way if they are joint.
If someone has a joint appointment, they likely attend all faculty meetings in both departments. Other faculty in the department will see them as a full member of the team. If they appointment is secondary, other faculty won't see them the same way. They will be thought of as a "affiliated" faculty member for the department.
For a joint appointment, the position is generally advertised that way. This is because the pay structure is worked out in advance. If someone has a secondary appointment, it can be determined at the time of hiring (during negotiations) or after hiring, often on the basis of a talk and faculty vote in the secondary department.