n.1.A composition resembling ivory in appearance and used as a substitute for it.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
References in periodicals archive ?
Parkesine would later be renamed Xylonite, Ivoride and then finally Celluloid - but Parkes' eponymous material paved the way for the development of what we now know as the plastics industry.
Cellulose nitrate was first discovered in the 1840s and was developed under various names such as parkesine, xylonite and ivoride, as well as celluloid.