Defn: A substance resembling pyroxylin, obtained by the action of nitric acid on starch; — called also nitramidin.

XYLOL
Xy"lol, n. Etym: [Xylo- + L. oleum oil.] (Chem.)

Defn: Same as Xylene.

XYLOLOGY
Xy*lol"o*gy, n. [Pref. xylo-+ -logy.]

Defn: The branch of dendrology treating of the gross and minute structure of wood.

XYLONITE
Xy"lon*ite, n.

Defn: See Zylonite.

XYLOPHAGA
Xy*loph"a*ga, n. Etym: [NL. See Xylophagous.] (Zoöl.)

Defn: A genus of marine bivalves which bore holes in wood. They are allied to Pholas.

XYLOPHAGAN Xy*loph"a*gan, n. Etym: [See Xylophagous.] (Zoöl.) (a) One of a tribe of beetles whose larvæ bore or live in wood. (b) Any species of Xylophaga. (c) Any one of the Xylophagides.