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Xiphioid
a.
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Of, pertaining to, or resembling, a cetacean of the genus Xiphius or family Xiphiidae.
Xiphiplastra
pl.
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of Xiphiplastron
Xiphiplastron
n.
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The posterior, or fourth, lateral plate in the plastron of turtles; -- called also xiphisternum.
Xiphisterna
pl.
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of Xiphisternum
Xiphisternum
n.
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The posterior segment, or extremity, of the sternum; -- sometimes called metasternum, ensiform cartilage, ensiform process, or xiphoid process.
Xiphisternum
n.
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The xiphiplastron.
Xiphius
n.
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A genus of cetaceans having a long, pointed, bony beak, usually two tusklike teeth in the lower jaw, but no teeth in the upper jaw.
Xiphodon
n.
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An extinct genus of artiodactylous mammals found in the European Tertiary formations. It had slender legs, didactylous feet, and small canine teeth.
Xiphoid
a.
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Of or pertaining to the xiphoid process; xiphoidian.
Xiphoidian
a.
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Xiphoid.
Xiphophyllous
a.
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Having sword-shaped leaves.
Xiphosura
n. pl.
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See Xiphura.
Xiphura
n. pl.
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Same as Limuloidea. Called also Xiphosura.
Xylamide
n.
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An acid amide derivative of xylic acid, obtained as a white crystalline substance.
Xylanthrax
n.
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Wood coal, or charcoal; -- so called in distinction from mineral coal.
Xylate
n.
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A salt of xylic acid.
Xylem
n.
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That portion of a fibrovascular bundle which has developed, or will develop, into wood cells; -- distinguished from phloem.
Xylenol
n.
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Any one of six metameric phenol derivatives of xylene, obtained as crystalline substances, (CH3)2.C6H3.OH.
Xyletic
a.
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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
a.
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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.
Xylidic
a.
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Pertaining to, or designating, either one of two distinct acids which are derived from xylic acid and related compounds, and are metameric with uvitic acid.
Xylidine
n.
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Any one of six metameric hydrocarbons, (CH3)2.C6H3.NH2, resembling aniline, and related to xylene. They are liquids, or easily fusible crystalline substances, of which three are derived from metaxylene, two from orthoxylene, and one from paraxylene. They are called the amido xylenes.
Xylindein
n.
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A green or blue pigment produced by Peziza in certain kinds of decayed wood, as the beech, oak, birch, etc., and extracted as an amorphous powder resembling indigo.
Xylite
n.
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A liquid hydrocarbon found in crude wood spirits.
Xylitone
n.
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A yellow oil having a geraniumlike odor, produced as a side product in making phorone; -- called also xylite oil.
Xylo-
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A combining form from Gr. xy`lon wood; as in xylogen, xylograph.
Xylocarpous
a.
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Bearing fruit which becomes hard or woody.
Xylocopa
n.
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A genus of hymenopterous insects including the carpenter. See Carpenter bee, under Carpenter.
Xylogen
n.
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Nascent wood; wood cells in a forming state.
Xylogen
n.
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Lignin.