I just saw this item for the first time (an ad in the mail, to a site that won't open!). I had never heard the term, so I L'dIU.
I can't cite the site (heh) but you can Google and find this: In giclee printing, no screen or other mechanical devices are used and therefore there is no visible dot screen pattern. The image has all the tonalities and hues of the original painting. Giclee (pronounced Gee’clay)...

Wikipedia offers: The word "giclée" was created by Jack Duganne, a print maker working at XYZ. He wanted a name for the new type of prints they were producing on the IRIS printer, a large format high resolution industrial prepress proofing ink-jet printer they had adapted for fine art printing. He was specifically looking for a word that would not have the negative connotations of "ink-jet" or "computer generated". To make the word descriptive of ink-jet technologies he based it on the French language word "le gicleur" meaning "nozzle", or more specifically "gicler" meaning "to squirt, spurt, or spray".[2]