I'm not sure about this Jack. From what I can see, this is a German invention, so maybe we have to use the term used by the inventors.

1. A process for the manufacture of piezoelectric multilayer actuators (16), in which thin layers made from a piezoceramic material, known as green films (10), onto which at least one internal electrode (11) is placed, are stacked one above the other into a block so that the internal electrodes (11) are led out alternately at opposing faces of the actuator (16),

Piezokeramische Vielschichtaktoren werden nach dem Stand der Technik als Monolithen ausgeführt, das heißt, der aktiven Werkstoff, auf dem vor dem Sintern durch ein Siebdruckverfahren Innenelektroden aufgetragen werden, wird als sogenannte Grünfolie zu einem Stapel aufeinandergelegt, der zu einem Grünkörper verpresst wird.

http://www.freepatentsonline.com/EP1235285.html

Piezoceramic multilayer actuators are fabricated according to the prior art as monoliths, that is to say the active material onto which internal electrodes are deposited by a silk screen process prior to sintering, is disposed as a so-called green film in successive layers as a stack that is compressed into a green body.

http://www.patentstorm.us/patents/7309397/description.html


--------------------------------------------------
Note added at 29 mins (2008-07-17 19:18:08 GMT)
--------------------------------------------------

green ceramic foils (i.e., flexible, unfired ceramic
foils in its raw state) http://www.patentstorm.us/patents/5919325/description.html