physician's license; medical license
Refers to the official license required to practice medicine as a doctor in Japan. Often used in contexts of qualification, certification, or legal permission.
He obtained his medical license and started working at a hospital.
You cannot practice medicine without a physician's license.
医師 means 'doctor' or 'physician', while 医師免許 specifically refers to the license that allows one to practice as a doctor.
免許 is a general term for a license or permit (e.g., driver's license), whereas 医師免許 is the specific license for medical doctors.
Compound of 医師 (physician) and 免許 (license). The term is straightforward and modern, with no obscure historical derivation.