Urosternite, ū-rō-ster′nīt, n. the sternite of any somite of the urosome of an arthropod.
Urosthene, ū′rō-sthēn, n. an animal whose strength rests mainly in its tail.—adj. Urosthen′ic. [Gr. oura, tail, sthenos, strength.]
Urostyle, ū′rō-stīl, n. a prolongation backward of the last vertebra.—adj. Urosty′lar. [Gr. oura, tail, stylos, column.]
Urotoxic, ū-ro-tok′sik, adj. pertaining to poisons eliminated in the urine. [Gr. ouron. urine, toxikon, poison.]
Urry, ur′i, n. a dark clay near a bed of coal. [Prob. Gael. uirlach—uir, earth.]
Ursine, ur′sin, adj. of or resembling a bear: thickly clothed with bristles, as certain caterpillars.—n. a bear.—n. Ur′sa, the name of two constellations, Ursa-Major and Ursa-Minor, the Great and the Little Bear.—adj. Ur′siform, in appearance like a bear.—n.pl. Ur′sinæ, the bears proper. [L.,—ursus, a bear.]
Urson, ur′sun, n. a rodent nearly allied to the porcupine, and often called the Canada Porcupine.
Ursuline, ur′sū-lin, adj. of or pertaining to St Ursula, esp. pertaining to the female teaching order founded by St Angela Merici of Brescia in 1537.
Urtica, ur′ti-ka, n. the genus of nettles, order Urticaceæ.—adjs. Urticā′ceous, relating to nettles; Ur′tical, pertaining to the nettles.—n. Urticā′ria, nettle-rash, hives.—adjs. Urticā′rial, Urticā′rious.—v.t. Ur′ticate, to sting, as with nettles.—n. Urticā′tion. [L. urtica, a nettle.]
Urubu, ōō′rōō-bōō, n. an American vulture. [Braz.]