n.
Pronunciation: p ī - ' räk-s ə -l ə n, p ə -
Function: noun
Etymology: International Scientific Vocabulary pyr- + Greek xylon wood
Date: circa 1847
1 : a flammable mixture of nitrocelluloses used especially in making plastics and water-repellent coatings (as lacquers)
2 : a pyroxylin product