Wiktionary
n. (translation only)
WordNet
n. a dealer in works of art requiring esthetic evaluation
Wikipedia
An art dealer is a person or company that buys and sells works of art. Art dealers' professional associations serve to set high standards for accreditation or membership and to support art exhibitions and shows.
Usage examples of "art dealer".
What was Lenz, a dodgy little art dealer, doing exiting the museum now?
To Ho, that meant that Spenser had been toying with him, that all the art dealer's good- natured ass-kissing and pandering had been merely a prelude to the big screw.
Theo, you're the best known and best liked young art dealer in Paris.
She made a choked sound and tried to push free of the drunken art dealer.
No reputable gallery would accept her work, so she had to marry an art dealer.
The art dealer easily shook himself free and pushed the old man away.
Cornish had lived in one of the apartments, and it had some suggestion of a human dwelling, though it was like an extremely untidy art dealer's shop -- which was one of the purposes to which he put it.
He and Chan had been friends since the bygone time when the Oriental art dealer operated a small shop in Honolulu.
Not only was Number 1 the corner shop, facing as it did towards the Fulham Road, and the largest property on the block, it was also an established if somewhat run-down fine art dealer and auctioneer.
Roberts left no record of the purchase, although ordinarily he was no more secretive than the next art dealer.