Definitions for "Sericel"
a silkscreen PRINT of a cartoon character on a clear sheet of plastic
is the term used when editions are meticulously screened onto the back of an acetate or cellulose cel one color at a time. Sericels are usually open editions and not hand signed.
A posh-looking cel, of which hundreds or thousands of copies are made, specifically created to convince novice cel collectors that they've bought something valuable or unique. Used extensively by Disney and Warner Bros.