(Britain) Specialised, involving detailed knowledge of a restricted topic.

Someone who is an expert in, or devoted to, some specific branch of study or research. / (medicine) A physician whose practice is limited to a particular branch of medicine or surgery.

plural of specialist

(dated) Specialist, specialized.

In a specialized way.

plural of non-specialist

Alternative form of nonspecialist

Alternative form of nonspecialist

plural of payload specialist

(astronautics) an astronaut selected and trained for specific space flights, usually responsible for handling complex equipment onboard and conducting experiments and researches