Treated with or containing celluloid, a type of early plastic made from cellulose.
From celluloid (created 1869, from cellulose + -oid meaning resembling) + -ed (past participle). The word describes something that has been given a celluloid coating or treatment.
Celluloid was the first synthetic plastic, and it made movie film possible—before plastic wrap, before modern polymers, celluloid was THE material of the future, and it came from cotton scraps!
Complete word intelligence in one call. Free tier — 50 lookups/day.