celluloid

noun

1. a tough, highly flammable substance consisting essentially of cellulose nitrate and camphor, used in the manufacture of motion-picture and x-ray film and other products.
2. motion-picture film.

adjective

3. Informal. of or involving motion pictures.

noun

1. a flammable thermoplastic material consisting of cellulose nitrate mixed with a plasticizer, usually camphor: used in sheets, rods, and tubes for making a wide range of articles
2. 1. a cellulose derivative used for coating film
   2. one of the transparent sheets on which the constituent drawings of an animated film are prepared
   3. a transparent sheet used as an overlay in artwork
   4. cinema film