Definition of factory-new:
(n) :
A building or other place where manufacturing takes place.
(n) :
A device or process that produces or manufactures something.
(n) :
(programming) In a computer program or library, a function, method, etc. which creates an object.
(n) :
(attributive) The original state of an electronic device, as it was when it came from the manufacturer.
(adj) :
(colloquial, of a configuration, part, etc.) Having come from the factory in the state it is currently in; original, stock.
(n) :
(UK, slang) A police station.