SPECIALIST

[noun] [C]A specialist is someone who limits their studying or work to a particular area of knowledge, and who knows a lot about that area.She's a specialist in cleaning old paintings.He's a specialist on modern French literature.They can't afford to pay for the advice of a specialist lawyer.I didn't get the job because I didn't have the necessary specialist skills (= detailed knowledge).I bought all my golf equipment from a specialist shop (= one which sells goods connected with one particular area of activity or interest).A specialist (also consultant) is also a doctor who works in and knows a lot about one particular area of medicine.I've asked to be referred to a specialist about my bad back.He is being treated by a leading eye specialist.