Xylophagous, zī-lof′a-gus, adj. wood-eating.
Xylophilous, zī-lof′i-lus, adj. fond of wood, living upon wood.
Xylophone, zī′lō-fōn, n. a musical instrument consisting of a graduated series of wooden bars, which are rested on straw, and are struck by wooden hammers. [Gr. xylon, wood, phōnē, a voice.]
Xylopia, zī-lō′pī-a, n. a genus of plants, natives of the tropics, chiefly in America. [Gr. xylon, wood, pikros, bitter.]
Xylopyrography, zī-lō-pī-rog′ra-fi, n. poker-painting.
Xyst, zist, n. a covered portico used by athletes for their exercises.—Also Xyst′os, Xyst′us.
Xyster, zis′tėr, n. a surgeon's instrument for scraping bones.
the twenty-fifth letter of our alphabet.—Y=150; Y=150,000.—ns. Y′-level, an engineers' spirit-level, so called because of the telescope formerly resting on 'Y's,' capable of being rotated at will—now substituted by the 'dumpy-level'—also Wye-level; Y′-moth, the gamma, a destructive noctuid moth, with a silvery Y-shaped mark on the upper wings; Y′-track, a short track laid at right angles to a railway-line, connected with it by two switches resembling a Y, used instead of a turn-table for reversing engines.