Xanthoxylene means: A liquid hydrocarbon of the terpene series extracted from the seeds of a Japanese prickly ash (Xanthoxylum pipertium) as an aromatic oil.
Xanthoxylum means: A genus of prickly shrubs or small trees, the bark and rots of which are of a deep yellow color; prickly ash.
Xylamide means: An acid amide derivative of xylic acid, obtained as a white crystalline substance.
Xylanthrax means: Wood coal, or charcoal; -- so called in distinction from mineral coal.
Xylate means: A salt of xylic acid.
Xylem means: That portion of a fibrovascular bundle which has developed, or will develop, into wood cells; -- distinguished from phloem.
Xylene means: Any of a group of three metameric hydrocarbons of the aromatic series, found in coal and wood tar, and so named because found in crude wood spirit. They are colorless, oily, inflammable liquids, C6H4.(CH3)2, being dimethyl benzenes, and are called respectively orthoxylene, metaxylene, and paraxylene. Called also xylol.
Xylenol means: Any one of six metameric phenol derivatives of xylene, obtained as crystalline substances, (CH3)2.C6H3.OH.
Xyletic means: Pertaining to, or designating, a complex acid related to mesitylenic acid, obtained as a white crystalline substance by the action of sodium and carbon dioxide on crude xylenol.
Xylic means: Pertaining to, derived from, or related to, xylene; specifically, designating any one of several metameric acids produced by the partial oxidation of mesitylene and pseudo-cumene.
Zyophyte means: Any plant of a proposed class or grand division (Zygophytes, Zygophyta, or Zygosporeae), in which reproduction consists in the union of two similar cells. Cf. Oophyte.
Zygomorphous means: Symmetrical bilaterally; -- said of organisms, or parts of organisms, capable of division into two symmetrical halves only in a single plane.
Zygomorphic means: Alt. of Zygomorphous
Zygomatic means: Of, pertaining to, or in the region of, the zygoma.
Zygoma means: The whole zygomatic arch.
Zygoma means: The zygomatic process of the temporal bone.
Zygoma means: The jugal, malar, or cheek bone.
Zygodactylous means: Yoke-footed; having the toes disposed in pairs; -- applied to birds which have two toes before and two behind, as the parrot, cuckoo, woodpecker, etc.
Zygodactylic means: Alt. of Zygodactylous
Zygodactyli means: Same as Scansores.
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