
In lighting for film, theatre and still photography, a cuculoris (occasionally also spelled cucoloris, kookaloris, cookaloris or cucalorus) is a device for casting shadows or silhouettes to produce patterned illumination. The word is sometimes shortened to cookie or coo-koo. The cookie is used to create a more natural look by breaking up the light...
Found on
http://en.wikipedia.org/wiki/Cucoloris

A perforate material used to break up light or create a shadow pattern. Also known as a cookie. (Grip/Lighting)
Found on
http://www.filmland.com/glossary/Dictionary.html#A
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