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pyrophotometer
pyrophyllite
pyrosis
pyrostat
pyrotechnic
pyrotechnics
pyroxene
pyroxenite
pyroxylin
pyrrhic
Pyrrhic victory
Pyrrhonism
pyrrhotite
pyrrole
pyruvate
pyruvic acid
Pythagorean theorem
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pyroxylin
py·rox·y·lin [ pī róksəlin ]


noun 
Definition:
 
highly flammable substance: a form of cellulose nitrate. Use: manufacture of plastics and lacquers.
[Mid-19th century. <pyro- + xylo-]
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