Longman Dictionary of Contemporary English homepage

Date: 1800-1900
Origin: Celluloid, a trademark

celluloid

 noun
     
cel‧lu‧loid [uncountable]
1

on celluloid

AMF on cinema film:
Chaplin's comic genius is preserved on celluloid.
2 a plastic substance made mainly from cellulose that was used in the past to make photographic film and other objects
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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