Search Result for "pyrocellulose": 
Wordnet 3.0

NOUN (1)

1. nitrocellulose containing less nitrogen than guncotton; used in making smokeless powder; 



WordNet (r) 3.0 (2006):

pyrocellulose
    n 1: nitrocellulose containing less nitrogen than guncotton;
         used in making smokeless powder