• (n.) A substance resembling pyroxylin, obtained by the action of nitric acid on starch; -- called also nitramidin.
Xy·loid'in noun [ Xyl o- + - oid .] (Chemistry) A substance resembling pyroxylin, obtained by the action of nitric acid on starch; -- called also nitramidin . 
Type: Term Pronunciation: zī-loy′din Synonyms: pyroxylin