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.]