Longman Dictionary of Contemporary English
Wiktionary
n. A statement from a physician or other health care provider that attests to the result of a medical examination of a patient.
Wikipedia
A medical certificate (sometimes referred to as a doctor's certificate) is a statement from a physician or other health care provider that attests to the result of a medical examination of a patient. It can serve as a "sick note" (documentation that an employee is unfit for work) or evidence of a health condition.
An aegrotat or sick note is a type of medical certificate excusing a student's absence from school for reasons of illness.
Usage examples of "medical certificate".
As a result of his injuries, Constantine lost his merchant navy medical certificate and that career too.
He will have to obtain a medical certificate regarding the cause of death.
It points also to an orthodox burial with proper accompaniment of medical certificate and official sanc- tion.
Kugler got a medical certificate to excuse him from the work detail.
That medical certificate of mine isn't the put-up job you all think it was.
That medical certificate of mine isn't the putup job you all think it was.
Medication has to be explained to the FAA unless it is some innocuous over-the-counter remedy, and the next time she goes to the flight surgeon to renew her medical certificate, she will have to list Dostinex.