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Urchin
a.
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Rough; pricking; piercing.
Urchon
n.
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The urchin, or hedgehog.
Urdu
n.
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The language more generally called Hindustanee.
Ure
n.
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Use; practice; exercise.
Ure
v. t.
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To use; to exercise; to inure; to accustom by practice.
Ureal
a.
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Of or pertaining to urea; containing, or consisting of, urea; as, ureal deposits.
Ureameter
n.
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An apparatus for the determination of the amount of urea in urine, in which the nitrogen evolved by the action of certain reagents, on a given volume of urine, is collected and measured, and the urea calculated accordingly.
Urechitin
n.
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A glucoside extracted from the leaves of a certain plant (Urechitis suberecta) as a bitter white crystalline substance.
Urechitoxin
n.
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A poisonous glucoside found accompanying urechitin, and extracted as a bitter white crystalline substance.
Uredo
n.
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One of the stages in the life history of certain rusts (Uredinales), regarded at one time as a distinct genus. It is a summer stage preceding the teleutospore, or winter stage. See Uredinales, in the Supplement.
Uredo
n.
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Nettle rash. See Urticaria.
Uredospore
n.
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The thin-walled summer spore which is produced during the so-called Uredo stage of certain rusts. See (in the Supplement) Uredinales, Heter/cious, etc.
Ureide
n.
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Any one of the many complex derivatives of urea; thus, hydantoin, and, in an extended dense, guanidine, caffeine, et., are ureides.
-uret
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A suffix with the same meaning as -ide. See -ide.
Ureter
n.
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The duct which conveys the urine from the kidney to the bladder or cloaca. There are two ureters, one for each kidney.
Ureteritis
n.
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Inflammation of the ureter.
Urethane
n.
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A white crystalline substance, NH2.CO.OC2H5, produced by the action of ammonia on ethyl carbonate. It is used somewhat in medicine as a hypnotic. By extension, any one of the series of related substances of which urethane proper is the type.
Urethra
n.
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The canal by which the urine is conducted from the bladder and discharged.
Urethral
a.
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Of or pertaining to the urethra.
Urethritis
n.
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Inflammation of the urethra.
Urethroplasty
n.
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An operation for the repair of an injury or a defect in the walls of the urethra.
Urethroscope
n.
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An instrument for viewing the interior of the urethra.
Urethroscopy
n.
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Examination of the urethra by means of the urethroscope.
Urethrotome
n.
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An instrument for cutting a urethral stricture.
Urethrotomy
n.
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An incision of the urethra, esp. incision for relief of urethral stricture.
Uretic
a.
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Of or pertaining to the urine; diuretic; urinary; as, uretic medicine.
Urged
imp. & p. p.
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of Urge
Urging
p. pr. & vb. n.
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of Urge
Urge
v. t.
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To press; to push; to drive; to impel; to force onward.
Urge
v. t.
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To press the mind or will of; to ply with motives, arguments, persuasion, or importunity.