celluloid
noun /ˈseljulɔɪd/
/ˈseljulɔɪd/
[uncountable]- a thin clear plastic material made in sheets, used in the past for cinema filmTopics Film and theatrec2
- (old-fashioned) used as a way of referring to films
Word Originmid 19th cent.: from cellulose + -oid.