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 UCC 2-104(1) defines a merchant as: 'a person who deals in goods of the kind or otherwise by his occupation holds himself out as having knowledge or skill peculiar to the practices or goods involved in the transaction or to whom such knowledge or skill may be attributed by his employment of an agent or broker or other intermediary who by his occupation holds himself out as having such knowledge or skill.' 

But the definition of merchant changes in the UCC such as in 2 -314 where it is a narrowed and the warranty of merchantability is applicable only to ...