[pahy-rok-suh-lin, puh-]
a nitrocellulose compound containing fewer nitrate groups than guncotton, used in the manufacture of artificial silk, leather, oilcloth, etc.
Also, pyroxyline [pahy-rok-suh-lin, -leen, puh-] .

1830–40; pyro- + xyl- + -in2 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
pyroxylin (paɪˈrɒksɪlɪn)
a yellow substance obtained by nitrating cellulose with a mixture of nitric and sulphuric acids; guncotton: used to make collodion, plastics, lacquers, and adhesives
[C19: from pyro- + xyl(o)- + -in]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

pyroxylin py·rox·y·lin (pī-rŏk'sə-lĭn)
A highly flammable cellulose nitrate used in the manufacture of collodion, plastics, and lacquers. Also called trinitrocellulose.

The American Heritage® Stedman's Medical Dictionary
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