pyroxylin

/paɪˈrɑksəlɪn/
noun
  1. A flammable substance made by treating cotton or other plant material with nitric and sulfuric acids, used to make plastics, lacquers, and explosives.
    • The artist applied a layer of pyroxylin to the canvas to create a glossy finish.
    • Early movie film was made from pyroxylin, which was highly flammable.
    • The factory used pyroxylin to produce a clear, durable coating for furniture.
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