celluloid

highly flammable substance made from cellulose nitrate and camphor; used in e.g. motion-picture and X-ray film; its use has decreased with the development of nonflammable thermoplastics

a medium that disseminates moving pictures

• “theater pieces transferred to celluloid”
• “this story would be good cinema”
• “film coverage of sporting events”

artificial as if portrayed in a film

• “a novel with flat celluloid characters”