pyroxyline vs pyroxylin

pyroxyline and pyroxylin both are nouns.

Word	Noun	Adjective	Verb	Adverb
pyroxyline	Yes	No	No	No
pyroxylin	Yes	No	No	No

As nouns, pyroxyline and pyroxylin are synonyms defined as:

pyroxyline and pyroxylin: highly flammable nitrocellulose used in making collodion and plastics and lacquers

pyroxyline (noun)	pyroxylin (noun)
highly flammable nitrocellulose used in making collodion and plastics and lacquers	highly flammable nitrocellulose used in making collodion and plastics and lacquers