Xanthose - Xylopyrography

Prev Next
[ Webster]

Xanthorhœa (?), n. [NL., from Gr. xanqos yellow + rei^n to flow.] (Bot.) A genus of endogenous plants, native to Australia, having a thick, sometimes arborescent, stem, and long grasslike leaves. See .
[ Webster]

Xanthose (?), n. (Chem.) An orange-yellow substance found in pigment spots of certain crabs.
[ Webster]

Xanthosis (?), n. [NL., fr. Gr. xanqos yellow.] (Med.) The yellow discoloration often observed in cancerous tumors.
[ Webster]

Xanthospermous (?), a. [Xantho- + Gr. sperma sperm.] (Bot.) Having yellow seeds.
[ Webster]

Xanthous (?), a. [Gr. xanqos yellow.] Yellow; specifically (Ethnol.), of or pertaining to those races of man which have yellowish, red, auburn, or brown hair.
[ Webster]

Xanthoxylene (?), n. [See .] (Chem.) A liquid hydrocarbon of the terpene series extracted from the seeds of a Japanese prickly ash (Xanthoxylum pipertium) as an aromatic oil.
[ Webster]

Xanthoxylum (?), n. [NL., from Gr. xanqos yellow + xylon wood.] (Bot.) A genus of prickly shrubs or small trees, the bark and rots of which are of a deep yellow color; prickly ash.
[ Webster]

☞ The commonest species in the Northern United States is Xanthoxylum Americanum. See Prickly ash, under .
[ Webster]

Xebec (zēbĕk), n. [Sp. jabegue, formerly spelt xabeque, or Pg. xabeco; both from Turk. sumbeki a kind of Asiatic ship; cf. Per. sumbuk, Ar. sumbūk a small ship.] (Naut.) A small three-masted vessel, with projecting bow stern and convex decks, used in the Mediterranean for transporting merchandise, etc. It carries large square sails, or both. Xebecs were formerly armed and used by corsairs.
[ Webster]

Xeme (zēm), n. (Zoöl.) An Arctic fork-tailed gull (Xema Sabinii).
[ Webster]

Xenelasia (?), n. [NL., from Gr. xenhlasia expulsion of strangers.] (Gr. Antiq.) A Spartan institution which prohibited strangers from residing in Sparta without permission, its object probably being to preserve the national simplicity of manners.
[ Webster]

Xenium (?), n.; pl. Xenia (#). [L., from Gr. xenion gift to a guest, fr. xenos guest.] (Class. Antiq.) A present given to a guest or stranger, or to a foreign ambassador.
[ Webster]

Xenodochium (?), n. [LL., fr. L. xenodochium a building for the reception of strangers, Gr. � .] (a) (Class. Antiq.) A house for the reception of strangers. (b) In the Middle Ages, a room in a monastery for the reception and entertainment of strangers and pilgrims, and for the relief of paupers. [Called also Xenodocheion.]
[ Webster]

Xenodochy (?), n. [Gr. �.] Reception of strangers; hospitality. [R.]
[ Webster]

Xenon (zĕnŏn; zēnŏn), n. [Gr. xenon, neut. of xenos strange.] (Chem.) A very heavy, inert gaseous element of the noble gas group, occurring in the atmosphere in the proportion of one volume is about 20 millions. It was discovered by Ramsay and Travers in 1898. It can be condensed to a liquid boiling at -107° C., and to a solid which melts at -111.9° C. Symbol Xe (formely also X); atomic number 54; atomic weight 131.3.
[Webster Suppl. +PJC]

Xenogamy (?), n. [Gr. xenos strange, foreign + � marriage.] (Bot.) Cross fertilization.
[ Webster]

Xenogenesis (?), n. [Gr. xenos a stranger + E. genesis.] (Biol.) (a) Same as . (b) The fancied production of an organism of one kind by an organism of another. Huxley.
[ Webster]

Xenogenetic (?), a. (Biol.) Of or pertaining to xenogenesis; as, the xenogenetic origin of microzymes. Huxley.
[ Webster]

Xenomania (?), n. [Gr. xenos strange + E. mania.] A mania for, or an inordinate attachment to, foreign customs, institutions, manners, fashions, etc. [R.] Saintsbury.
[ Webster]

Xenomi (?), n. pl. [NL., from Gr. xenos strange.] (Zoöl.) A suborder of soft-rayed fresh-water fishes of which the blackfish of Alaska (Dallia pectoralis) is the type.
[ Webster]

Xenopterygii (?), n. pl. [NL., from Gr. xenos strange + �, dim. of � a wing.] (Zoöl.) A suborder of fishes including Gobiesox and allied genera. These fishes have soft-rayed fins, and a ventral sucker supported in front by the pectoral fins. They are destitute of scales.
[ Webster]

Xenotime (?), n. [Gr. � honoring guests or strangers; xenos guest, stranger + � honor: cf. G. xenotim.] (Min.) A native phosphate of yttrium occurring in yellowish-brown tetragonal crystals.
[ Webster]

Xenurine (?), n. [Gr. xenos strange + � tail.] (Zoöl.) A cabassou.
[ Webster]

Xenyl (?), n. [Gr. xenos strange + -yl.] (Chem.) The radical characteristic of xenylic compounds.
[ Webster]

Xenylic (?), a. (Chem.) Pertaining to, derived from, designating, certain amido compounds obtained by reducing certain nitro derivatives of diphenyl.
[ Webster]

Xeraphim (?), n. [Pg. xarafin, xerafin, fr. Ar. ashrafī noble, the name of a gold coin.] An old money of account in Bombay, equal to three fifths of a rupee.
[ Webster]

Xeres (?), n. Sherry. See .
[ Webster]

Xerif (?), n. A shereef.
[ Webster]

Xeriff (?), n. [See .] A gold coin formerly current in Egypt and Turkey, of the value of about 9s. 6d., or about $2.30; -- also, in Morocco, a ducat.
[ Webster]

Xeroderma (?), n. [NL., fr. Gr. � dry + � skin.] (Med.) (a) Ichthyosis. (b) A skin disease characterized by the presence of numerous small pigmented spots resembling freckles, with which are subsequently mingled spots of atrophied skin.
[ Webster]

Xeronate (?), n. (Chem.) A salt of xeronic acid.
[ Webster]

Xeronic (?), a. [Gr. � dry + citraconic.] (Chem.) Pertaining to, or designating, an acid, C8H12O4, related to fumaric acid, and obtained from citraconic acid as an oily substance having a bittersweet taste; -- so called from its tendency to form its anhydride.
[ Webster]

Xerophagy (?), n. [L. xerophagia, Gr. �; � dry + � to eat.] Among the primitive Christians, the living on a diet of dry food in Lent and on other fasts.
[ Webster]

Xerophilous (?), a. [Gr. � dry + � to love.] (Bot.) Drought-loving; able withstand the absence or lack of moisture.
[ Webster]

Plants which are peculiarly adapted to dry climates are termed by De Candolle xerophilous. Goodale.
[ Webster]

Xerophthalmia (?), n. [L., fr. Gr. �; � dry + � the eye. See .] (Med.) An abnormal dryness of the eyeball produced usually by long-continued inflammation and subsequent atrophy of the conjunctiva.
[ Webster]

Xerophthalmy (?), n. (Med.) Xerophthalmia.
[ Webster]

Xiphias (?), n. [L., a swordfish, a sword-shaped comet, fr. Gr. xifias, fr. xifos a sword.]
[ Webster]

1. (Zoöl.) A genus of fishes comprising the common swordfish.
[ Webster]

2. (Anat.) (a) The constellation Dorado. (b) A comet shaped like a sword
[ Webster]

Xiphidium (?), n. [NL., from Gr. �, dim. of xifos sword.] (Bot.) A genus of plants of the order Hæmodraceæ, having two-ranked, sword-shaped leaves.
[ Webster]

Xiphioid (?), a. [Xiphius + -oid.] (Zoöl.) Of, pertaining to, or resembling, a cetacean of the genus Xiphius or family Xiphiidæ.
[ Webster]

Xiphiplastron (?), n.; pl. Xiphiplastra (#). [NL., fr. Gr. xifos a sword + plastron.] (Anat.) The posterior, or fourth, lateral plate in the plastron of turtles; -- called also xiphisternum.
[ Webster]

Xiphisternum (?), n.; pl. Xiphisterna (#). [NL., fr. Gr. xifos a sword + sternum.] (Anat.) (a) The posterior segment, or extremity, of the sternum; -- sometimes called metasternum, ensiform cartilage, ensiform process, or xiphoid process. (b) The xiphiplastron. -- Xiphisternal (#) a.
[ Webster]

Xiphius (?), n. [NL., fr. Gr. xifos a sword.] (Zoöl.) 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.
[ Webster]

Xiphodon (?), n. [Gr. xifos a sword + 'odoys, 'odontos, a tooth.] (Paleon.) An extinct genus of artiodactylous mammals found in the European Tertiary formations. It had slender legs, didactylous feet, and small canine teeth.
[ Webster]

Xiphoid (?; 277), a. [Gr. � sword-shaped; xifos a sword + � form, shape: cf. F. xiphoide.] (Anat.) (a) Like a sword; ensiform. (b) Of or pertaining to the xiphoid process; xiphoidian.
[ Webster]

Xiphoidian (?), a. (Anat.) Xiphoid.
[ Webster]

Xiphophyllous (?), a. [Gr. xifos sword + � leaf.] (Bot.) Having sword-shaped leaves.
[ Webster]

Xiphosura (?), n. pl. See .
[ Webster]

Xiphura (?), n. pl. [NL., from Gr. xifos sword + � tail.] (Zoöl.) Same as . Called also Xiphosura.
[ Webster]

XP (?). [Belongs here in appearance only.] The first two letters of the Greek word XRISTOS, Christ; -- an abbreviation used with the letters separate or, oftener, in a monogram, often inclosed in a circle, as a symbol or emblem of Christ. It use as an emblem was introduced by Constantine the Great, whence it is known as the Coloq. Constantinian symbol , or Coloq. monogram . See .
[Webster Suppl.]

x-rated (ĕksrātĕd), a. [from a system of ratings for movies based on objectionableness of the content or suitability for children.] having a rating of X; not suitable for children; broadly, obscene or sexually explicit.
[PJC]

X ray, X-ray (ĕksrā), n. [so called by its discoverer because of its enigmatical character, x being an algebraic symbol for an unknown quantity.] (Physics) originally, any of the rays produced when cathode rays strike upon surface of a solid (as a copper target or the wall of the vacuum tube); now defined as electromagnetic radiation with a wavelength of 0.1 to 10 nanometers. X-rays are noted for their penetration of many opaque substances, as wood and flesh, their action on photographic plates, and their fluorescent effects. They were called X rays by their discoverer, W. K. Röntgen, but were also referred to for some time as Roentgen rays. The term X-ray has become the most common designation. They also ionize gases, but cannot be reflected, or polarized, or deflected by a magnetic field. They are used in examining objects opaque to visible light, as for imaging bones or other structures inside the human body, and for detecting flaws in metal objects, such as in welds.
[Webster Suppl. +PJC]

X ray, X-ray (ĕksrā), v. t. to examine by means of X-rays; to irradiate with X-rays.
[PJC]

X-ray astronomy. the branch of astronomy dealing with the study of astronomical objects which emit X-rays, and the methods used to detect such objects.
[PJC]

X-ray tube. (Physics) A vacuum tube suitable for producing Röntgen rays.
[Webster Suppl.]

Xylamide (?), n. [Xylic + amide.] (Chem.) An acid amide derivative of xylic acid, obtained as a white crystalline substance.
[ Webster]

Xylan (?), n. (Chem.) A gummy substance of the pentosan class, present in woody tissue, and yielding xylose on hydrolysis; wood gum.
[Webster Suppl.]

Xylanthrax (?), n. [Gr. xylon wood + � coal.] Wood coal, or charcoal; -- so called in distinction from mineral coal.
[ Webster]

Xylate (?), n. (Chem.) A salt of xylic acid.
[ Webster]

Xylem (?), n. [Gr. xylon wood.] (Bot.) That portion of a fibrovascular bundle which has developed, or will develop, into wood cells; -- distinguished from phloëm.
[ Webster]

Xylene (?), n. [Gr. xylon wood.] (Chem.) 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.
[ Webster]

☞ Each of these xylenes is the nucleus and prototype of a distinct series of compounds.
[ Webster]

Xylenol (?), n. [Xylene + -ol.] (Chem.) Any one of six metameric phenol derivatives of xylene, obtained as crystalline substances, (CH3)2.C6H3.OH.
[ Webster]

Xyletic (?), a. (Chem.) 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.
[ Webster]

Xylic (?), a. (Chem.) 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.
[ Webster]

Xylidic (?), a. (Chem.) 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.
[ Webster]

Xylidine (?), n. (Chem.) 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.
[ Webster]

☞ The xylidine of commerce, used in making certain dyes, consists chiefly of the derivatives of paraxylene and metaxylene.
[ Webster]

Xylindein (?), n. (Chem.) 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.
[ Webster]

Xylite (?), n. [Gr. xylon wood.] (Chem.) A liquid hydrocarbon found in crude wood spirits.
[ Webster]

Xylitone (?), n. (Chem.) A yellow oil having a geraniumlike odor, produced as a side product in making phorone; -- called also xylite oil.
[ Webster]

Xylo- (?). A combining form from Gr. xylon wood; as in xylogen, xylograph.
[ Webster]

Xylobalsamum (?), n. [NL., fr. Gr. xylon wood + � the balsam tree, balsam; cf. L. xylobalsamum balsam wood, Gr. �.] (Med.) The dried twigs of a Syrian tree (Balsamodendron Gileadense). U. S. Disp.
[ Webster]

Xylocarpous (?), a. [Xylo- + Gr. karpos fruit.] (Bot.) Bearing fruit which becomes hard or woody.
[ Webster]

Xylocopa (?), n. [NL., fr. Gr. � cutting wood; xylon wood + � to cut.] (Zoöl.) A genus of hymenopterous insects including the carpenter. See Carpenter bee, under . -- Xylocopine (#), a.
[ Webster]

Xylogen (?), n. [Xylo- + -gen.] (a) (Bot.) Nascent wood; wood cells in a forming state. (b) Lignin.
[ Webster]

Xylograph (?), n. [Xylo- + -graph.] An engraving on wood, or the impression from such an engraving; a print by xylography.
[ Webster]

Xylographer (?), n. One who practices xylography.
[ Webster]

{ Xylographic (?), Xylographical (?), } a. [Cf. F. xylographique.] Of or pertaining to xylography, or wood engraving.
[ Webster]

Xylography (?), n. [Xylo- + -graphy: cf. F. xylographie.]
[ Webster]

1. The art of engraving on wood.
[ Webster]

2. The art of making prints from the natural grain of wood. Knight.
[ Webster]

3. A method pf printing in colors upon wood for purposes of house decoration. Ure.
[ Webster]

Xyloid (?), a. [Xylo- + -oid.] Resembling wood; having the nature of wood.
[ Webster]

Xyloidin (?), n. [Xylo- + -oid.] (Chem.) A substance resembling pyroxylin, obtained by the action of nitric acid on starch; -- called also nitramidin.
[ Webster]

Xylol (?), n. [Xylo- + L. oleum oil.] (Chem.) Same as .
[ Webster]

Xylology (?), n. [Pref. xylo- + -logy.] The branch of dendrology treating of the gross and minute structure of wood.
[Webster Suppl.]

Xylonite (?), n. See .
[ Webster]

Xylophaga (?), n. [NL. See .] (Zoöl.) A genus of marine bivalves which bore holes in wood. They are allied to Pholas.
[ Webster]

Xylophagan (?), n. [See .] (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.
[ Webster]

Xylophagides (?), n. pl. [See .] (Zoöl.) A tribe or family of dipterous flies whose larvæ live in decayed wood. Some of the tropical species are very large.
[ Webster]

Xylophagous (?), a. [Gr. � eating wood; xylon wood + � to eat.] (Zoöl.) (a) Eating, boring in, or destroying, wood; -- said especially of certain insect larvæ, crustaceans, and mollusks. (b) Of or pertaining to the genus Xylophaga.
[ Webster]

Xylophilan (?), n. [See .] (Zoöl.) One of a tribe of beetles (Xylophili) whose larvæ live on decayed wood.
[ Webster]

Xylophilous (?), a. [Xylo- + Gr. filei^n to love.] (Zoöl.) Of or pertaining to the xylophilans.
[ Webster]

Xylophone (?), n. [Xylo- + Gr. fwnh sound.]
[ Webster]

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.
[ Webster]

2. An instrument to determine the vibrative properties of different kinds of wood. Knight.
[ Webster]

Xyloplastic (?), a. [Xylo- + -plastic.] (Technol.) Formed of wood pulp by molds; relating to casts made of wood pulp in molds.
[ Webster]

Xylopyrography (?). 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 .
[ Webster]

Prev Next

Concept Explore Home

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z