noun

specialist

specialist, expert

She is a specialist in heart disease.

She is a specialist in heart disease.

You should see a specialist about your knee.

You should see a specialist about your knee.

((a specialist)) ((in sth.)) an expert in a particular subject He is a specialist in international law.

Synonyms: expert, professional; Antonyms: generalist, amateur

From 'special' plus the suffix '-ist', which denotes a person who practises or is an expert in something, like 'artist' or 'pianist'.

A 'specialist' is a person ('-ist') who has 'special' knowledge.

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