Locum – A person who temporarily fulfils duties of another (note: the term is especially used for a physician or clergyman)
Can someone local come (locum) and fill in while the other doctor is sick?
Examples of locum in a sentence
A locum consultant failed to spot the result of her earlier test and arranged for a totally unnecessary operation.
I want just one spell of six months as a locum in some exotic place.
We need a locum vicar next Sunday, or the service won't go ahead.