[ sel-yuh-loid ]
/ ˈsɛl yəˌlɔɪd /


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.
motion-picture film.


Informal. of or involving motion pictures.

Origin of celluloid

former trademark; cellul(ose) + -oid
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for celluloid

British Dictionary definitions for celluloid

/ (ˈsɛljʊˌlɔɪd) /


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
  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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012