A giclée is a high-quality art print made on a special inkjet printer. It’s by no means exclusive to maps, but it’s a term worth remembering. I first learned about it in the context of a MapHist discussion of fakes, forgeries and facsimiles, particularly in reference to an eBay auction of a giclée print that may well have been fraudulent because it listed itself en passant as a giclée without making the implications of that clear. Which is to say that if you’re buying a giclée, you’re buying a digital print: remember that.
More on giclées from the eponymous Wikipedia entry, this history of the form — it’s less than 15 years old — from Startphoto.com, and Mamata Herland’s honours essay (56 pages, 2.1-MB PDF) on the subject.