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(Chemistry) a type of plastic or celluloid that resembles amber, coral, or tortoise shell and is used in jewellery, combs, or other objects


The second edition of Webster’s New International Dictionary (1959) says it was the original name for Celluloid. The 1940 Merck Index indicates that celluloid and zylonite are the same. An early-twentieth-century dictionary says zylonite (Xylonite) is similar to celluloid and is made from pyroxylin. The 1895 Montgomery Ward Catalog lists both celluloid and zylonite harness rings, which implies that they were different (although they might be of the same material but from different manufacturers).
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References in classic literature ?
ASCENSION, MARE BOAT--Wreck of unknown racing-plane, Parden rudder, wire-stiffened xylonite vans, and Harliss engine-seating, sighted and salved 7 20' S.
One of those hired was Xylonite, a Thames sailing barge that featured in several scenes.
But he made his major discovery in 1855 with a substance known as Xylonite or Parkesine.