Xylophone
(Xy"lo*phone) n. [Xylo- + Gr. fwnh` sound.]
1. (Mus.) An instrument common among the Russians, Poles, and Tartars, consisting of a series of
strips of wood or glass graduated in length to the musical scale, resting on belts of straw, and struck
with two small hammers. Called in Germany strohfiedel, or straw fiddle.
2. An instrument to determine the vibrative properties of different kinds of wood. Knight.
Xyloplastic
(Xy`lo*plas"tic) a. [Xylo- + -plastic.] (Technol.) Formed of wood pulp by molds; relating to
casts made of wood pulp in molds.
Xylopyrography
(Xy`lo*py*rog"ra*phy) n. [Xylo- + Gr. fire + -graphy.] The art or practice of burning
pictures on wood with a hot iron; — called also poker painting. See Poker picture, under Poker.
Xyloquinone
(Xy`lo*qui"none) n. [Xylene + quinone.] (Chem.) Any one of a group of quinone compounds
obtained respectively by the oxidation of certain xylidine compounds. In general they are yellow crystalline
substances.
Xylorcin
(Xy*lor"cin) n. [Xylene + orcin.] (Chem.) A derivative of xylene obtained as a white crystalline
substance which on exposure in the air becomes red; — called also betaorcin.
Xylostein
(Xy*los"te*in) n. [Xylo- + Gr. bone.] (Chem.) A glucoside found in the poisonous berries of
a species of honeysuckle and extracted as a bitter, white, crystalline substance.
Xylotile
(Xy"lo*tile) n. Same as Parkesine.
Xylotrya
(||Xy*lo"try*a) n. [NL., fr. Gr. xy`lon wood + to rub, wear out.] (Zoöl.) A genus of marine bivalves
closely allied to Teredo, and equally destructive to timber. One species (Xylotrya fimbriata) is very common
on the Atlantic coast of the United States.
Xylyl
(Xy"lyl) n. [Xylo- + - yl.] (Chem.) Any one of three metameric radicals which are characteristic
respectively of the three xylenes.
Xylylene
(Xy"lyl*ene) n. (Chem.) Any one of three metameric radicals, CH2.C6H4.CH2, derived respectively
from the three xylenes. Often used adjectively; as, xylylene alcohol.
Xyridaceous
(Xyr`i*da"ceous) a. (Bot.) Of or pertaining to a natural order (Xyrideæ) of endogenous
plants, of which Xyris is the type.
Xyris
(||Xy"ris) n. [L., a kind of Iris, Gr. fr. a razor.] (Bot.) A genus of endogenous herbs with grassy
leaves and small yellow flowers in short, scaly- bracted spikes; yellow-eyed grass. There are about seventeen
species in the Atlantic United States.
Xyst
(Xyst ||Xys"tus) n. [L. xystus, Gr. from to scrape, polish; — so called from its smooth and polished
floor.] (Anc. Arch.) A long and open portico, for athletic exercises, as wrestling, running, etc., for use
in winter or in stormy weather.
Xystarch
(Xyst"arch) n. [L. xystarches, Gr. a xyst + to rule.] (Gr. Antiq.) An office having the superintendence
of the xyst. Dr. W. Smith.
Xyster
(Xys"ter) n. [NL., fr. Gr. xysth`r a scraper.] (Surg.) An instrument for scraping bones.
