Part 3

||Xen"o*mi (?), n. pl. [NL., from Gr. xe`nos strange.] (Zoöl.) A suborder of soft-rayed fresh-water fishes of which the blackfish of Alaska (Dallia pectoralis) is the type.

||Xe*nop`te*ryg"i*i (?), n. pl. [NL., from Gr. xe`nos 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.

Xen"o*time (?), n. [Gr. &?; honoring guests or strangers; xe`nos guest, stranger + &?; honor: cf. G. xenotim.] (Min.) A native phosphate of yttrium occurring in yellowish-brown tetragonal crystals.

Xe*nu"rine (?), n. [Gr. xe`nos strange + &?; tail.] (Zoöl.) A cabassou.

Xen"yl (?), n. [Gr. xe`nos strange + -yl.] (Chem.) The radical characteristic of xenylic compounds.

Xe*nyl"ic (?), a. (Chem.) Pertaining to, derived from, designating, certain amido compounds obtained by reducing certain nitro derivatives of diphenyl.

Xer"a*phim (?), n. [Pg. xarafin, xerafin, fr. Ar. ashraf noble, the name of a gold coin.] An old money of account in Bombay, equal to three fifths of a rupee.

Xer"es (?), n. Sherry. See Sherry.

Xer"if (?), n. A shereef.

Xer"iff (?), n. [See Shereef.] 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.

||Xe`ro*der"ma (?), 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.

Xe"ro*nate (?), n. (Chem.) A salt of xeronic acid.

Xe*ron"ic (?), 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.

Xe*roph"a*gy (?), 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.

Xe*roph"i*lous (?), a. [Gr. &?; dry + &?; to love.] (Bot.) Drought-loving; able withstand the absence or lack of moisture.

Plants which are peculiarly adapted to dry climates are termed by De Candolle xerophilous.

Goodale.

||Xe`roph*thal"mi*a (?), n. [L., fr. Gr. &?;; &?; dry + &?; the eye. See Ophthalmia.] (Med.) An abnormal dryness of the eyeball produced usually by long- continued inflammation and subsequent atrophy of the conjunctiva.

Xe`roph*thal"my (?), n. (Med.) Xerophthalmia.

||Xiph"i*as (?), n. [L., a swordfish, a sword-shaped comet, fr. Gr. xifi`as, fr. xi`fos a sword.]

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

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

||Xi*phid"i*um (?), n. [NL., from Gr. &?;, dim. of xi`fos sword.] (Bot.) A genus of plants of the order Hæmodraceæ, having two-ranked, sword-shaped leaves.

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

||Xiph"i*plas"tron (?), n.; pl. Xiphiplastra (#). [NL., fr. Gr. xi`fos a sword + plastron.] (Anat.) The posterior, or fourth, lateral plate in the plastron of turtles; -- called also xiphisternum.

||Xiph"i*ster"num (?), n.; pl. Xiphisterna (#). [NL., fr. Gr. xi`fos 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. -- Xiph"i*ster"nal (#) a.

||Xiph"i*us (?), n. [NL., fr. Gr. xi`fos 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.

Xiph"o*don (?), n. [Gr. xi`fos a sword + 'odoy`s, 'odo`ntos, 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.