An expert who is devoted to one occupation or branch of learning.
Roget 799a: stock market, stock exchange, securities exchange; bourse, board; the big board, the New York Stock Exchange; the market, the open market; over-the-counter market; privately traded issues. commodities exchange, futures exchange, ... show more
Practices one branch of medicine.
synonym: medical specialist.
Moby thesaurus: Wall Streeter, adept, aficionado, amateur, anesthesiologist, artist, artiste, authoritative, authority, bond crowd, broker, buff, cardiologist, chiropodist, confined, connoisseur, critic, curb broker, dealer, dermatologist ... show more.
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