Urban servitude. See Predial servitude, under Servitude.

(Ur*bane") a. [See Urban.] Courteous in manners; polite; refined; elegant.

(Ur"ban*iste) n. (Bot.) A large and delicious pear or Flemish origin.

(Ur*ban"i*ty) n. [L. urbanitas; cf. F. urbanité.]

(U`ra*nol"o*gy) n. [Gr. heaven + - logy.] A discourse or treatise on the heavens and the heavenly bodies; the study of the heavens; uranography.

(||U`ra*nom`e*tri"a) n. [NL.] A uranometry.

(U`ra*nom"e*try) n. [Gr. heaven + - metry.] (Astron.) A chart or catalogue of fixed stars, especially of stars visible to the naked eye.

(U"ra*no*plas`ty) n. [See Uraniscoplasty.] (Surg.) The plastic operation for closing a fissure in the hard palate.

(U`ra*nos"co*py) n. [Gr. + - scopy.] Observation of the heavens or heavenly bodies.

(U`ra*no"so-) a. (Chem.) A combining form (also used adjectively) from uranium; — used in naming certain complex compounds; as in uranoso-uranic oxide, uranoso-uranic sulphate.

(U"ra*nous) a. (Chem.) Pertaining to, or containing, uranium; designating those compounds in which uranium has a lower valence as contrasted with the uranic compounds.

(U"ra*nus) n. [L. Uranus, Gr. O'yrano`s Uranus, o'yrano`s heaven, sky. Cf. Uranium.]

1. (Gr. Myth.) The son or husband of Gaia and father of Chronos (Time) and the Titans.

2. (Astron.) One of the primary planets. It is about 1,800,000,000 miles from the sun, about 36,000 miles in diameter, and its period of revolution round the sun is nearly 84 of our years.

This planet has also been called Herschel, from Sir William Herschel, who discovered it in 1781, and who named it Georgium Sidus, in honor of George III., then King of England.

(U*ran"-u*tan`) (Zoöl.) The orang- utang

(U"ra*nyl) n. [Uranium + - yl.] (Chem.) The radical UO2, conveniently regarded as a residue of many uranium compounds.

(U*ra"o) n. [Sp.] (Min.) See Trona.

(U*ra"re U*ra"ri), n. See Curare.

(U"rate) n. [Cf. F. urate.] (Physiol. Chem.) A salt of uric acid; as, sodium urate; ammonium urate.

(U*rat"ic) (Physiol. Chem.) Of or containing urates; as, uratic calculi.

(Ur"ban) a. [L. urbanus belonging to the ity or town, refined, polished, fr. urbs, urbis, a city: cf. F. urbain. Cf. Urbane.]

1. Of or belonging to a city or town; as, an urban population.

2. Belonging to, or suiting, those living in a city; cultivated; polite; urbane; as, urban manners.

  By PanEris using Melati.

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