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.

A glucoside extracted from the leaves of a certain plant (Urechitis suberecta) as a bitter white crystalline substance.

A poisonous glucoside found accompanying urechitin, and extracted as a bitter white crystalline substance.

An order of fungi of the phylum Basidiomycota, comprising the rust fungi.

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.

Any one of the many complex derivatives of urea; thus, hydantoin, and, in an extended dense, guanidine, caffeine, et., are ureides.

The duct which conveys the urine from the kidney to the bladder or cloaca. There are two ureters, one for each kidney.

Inflammation of the ureter.

A white crystalline substance, NH2.CO.OC2H5, produced by the action of ammonia on ethyl carbonate or by heating urea nitrate and ethyl alcohol. It is used as a hypnotic, antipyretic, and antispasmodic. Hence, any ester of carbamic acid.

The canal by which the urine is conducted from the bladder and discharged.

Of or pertaining to the urethra.

Inflammation of the urethra.

An operation for the repair of an injury or a defect in the walls of the urethra.

An instrument for viewing the interior of the urethra.

Examination of the urethra by means of the urethroscope.

An instrument for cutting a urethral stricture.

An incision of the urethra, esp. incision for relief of urethral stricture.

Of or pertaining to the urine; diuretic; urinary; as, uretic medicine.

To press onward or forward.

Urgency.

The quality or condition of being urgent; insistence; pressure; as, the urgency of a demand or an occasion.

Urging; pressing; besetting; plying, with importunity; calling for immediate attention; instantly important.

In an urgent manner.

One who urges.

Of or pertaining to urine; obtained from urine; as, uric acid.

A part or decoration of the breastplate of the high priest among the ancient Jews, by which Jehovah revealed his will on certain occasions. Its nature has been the subject of conflicting conjectures.

A reservoir for urine, etc., for manure.

A urinarium; also, a urinal.

To discharge urine; to make water.

The act or process of voiding urine; micturition.

Provoking the flow of urine; uretic; diuretic.

One who dives under water in search of something, as for pearls; a diver.

To urinate.

Bearing or conveying urine; as, uriniferous tubules.

Producing or preparing urine; as, the uriniparous tubes in the cortical portion of the kidney.

Pertaining to the urinary and genital organs; genitourinary; urogenital; as, the urinogenital canal.

A small hydrometer for determining the specific gravity of urine.

The estimation of the specific gravity of urine by the urinometer.

Of or pertaining to urine, or partaking of its qualities; having the character or odor of urine; similar to urine.

One of the segments of the abdomen or post-abdomen of arthropods.

The bindings of a hedge.

To inclose in, or as in, an urn; to inurn.

Having the shape of an urn; as, the urn-shaped capsules of some mosses.

Of or pertaining to an urn; effected by an urn or urns.

As much as an urn will hold; enough to fill an urn.

A yellow pigment identical with hydrobilirubin, abundant in the highly colored urine of fever, and also present in normal urine. See Urochrome.

A morbid swelling of the scrotum due to extravasation of urine into it.

A division of boring Hymenoptera, including Tremex and allied genera. See Illust. of Horntail.

The central axis or cord in the tail of larval ascidians and of certain adult tunicates.

Of or pertaining to the Urochorda.

Same as Tunicata.

A yellow urinary pigment, considered by Thudichum as the only pigment present in normal urine. It is regarded by Maly as identical with urobilin.

See Aurochs.

See Urochord.

The urinary bladder.

An order of amphibians having the tail well developed and often long. It comprises the salamanders, tritons, and allied animals.

One of the Urodela.

Of or pertaining to the Urodela. One of the Urodela.

A reddish urinary pigment, considered as the substance which gives to the urine of rheumatism its characteristic color. It also causes the red color often seen in deposits of urates.

Behind the stomach; -- said of two lobes of the carapace of certain crustaceans.

A body identical with indigo blue, occasionally found in the urine in degeneration of the kidneys. It is readily formed by oxidation or decomposition of indican.

Urinary haematin; -- applied to the normal coloring matter of the urine, on the supposition that it is formed either directly or indirectly (through bilirubin) from the haematin of the blood. See Urochrome, and Urobilin.

Of or pertaining to one or more median and posterior elements in the hyoidean arch of fishes. A urohyal bone or cartilage.

See Uronology.

Any one of the abdominal segments of an arthropod.

That part of medicine which treats of urine.

Any one of the abdominal appendages of a crustacean, especially one of the posterior ones, which are often larger than the rest, and different in structure, and are used chiefly in locomotion. See Illust. of Crustacea, and Stomapoda.

Of or pertaining to a uropod.

Of or pertaining to the uropygium, or prominence at the base of the tail feathers, in birds.

The prominence at the posterior extremity of a bird's body, which supports the feathers of the tail; the rump; -- sometimes called pope's nose.

Of or pertaining to both the caudal and sacral parts of the vertebral column; as, the urosacral vertebrae of birds.

The diagnosis of diseases by inspection of urine.

The abdomen, or post-abdomen, of arthropods.

One of the plates on the under side of the tail of a serpent.

A median ossification back of the lophosteon in the sternum of some birds.

The sternal, or under piece, of any one of the uromeres of insects and other arthropods.

A styliform process forming the posterior extremity of the vertebral column in some fishes and amphibians.

The aurochs.

A salt of uroxanic acid.

Pertaining to, or designating, an acid, C5H8N4O6, which is obtained, as a white crystalline substance, by the slow oxidation of uric acid in alkaline solution.

Same as Indican.

Indigo red, a product of the decomposition, or oxidation, of indican. It is sometimes found in the sediment of pathological urines. It is soluble in ether or alcohol, giving the solution a beautiful red color. Also called indigrubin.

A sort of blue or black clay lying near a vein of coal.

Either one of the Bears. See the Phrases below.

The ursine seal. See the Note under 1st Seal.

Having the shape of a bear.

Of or pertaining to a bear; resembling a bear.

The Canada porcupine. See Porcupine.

The bearded seal.

A beautiful North American butterfly (Basilarchia astyanax syn. Limenitis astyanax). Its wings are nearly black with red and blue spots and blotches. Called also red-spotted purple.

Of or pertaining to St. Ursula, or the order of Ursulines; as, the Ursuline nuns.

A genus of Carnivora including the common bears.

A genus of plants including the common nettles. See Nettle, n.

Of or pertaining to a natural order (Urticaceae) of plants, of which the nettle is the type. The order includes also the hop, the elm, the mulberry, the fig, and many other plants.

Resembling nettles; -- said of several natural orders allied to urticaceous plants.

The nettle rash, a disease characterized by a transient eruption of red pimples and of wheals, accompanied with a burning or stinging sensation and with itching; uredo.

To sting with, or as with, nettles; to irritate; to annoy.

The act or process of whipping or stinging with nettles; -- sometimes used in the treatment of paralysis.

The black vulture (Catharista atrata). It ranges from the Southern United States to South America. See Vulture.

A very large, powerful, and savage extinct bovine animal (Bos urus or Bos primigenius) anciently abundant in Europe. It appears to have still existed in the time of Julius Caesar. It had very large horns, and was hardly capable of domestication. Called also, ur, ure, and tur.

The crab-eating ichneumon (Herpestes urva), native of India. The fur is black, annulated with white at the tip of each hair, and a white streak extends from the mouth to the shoulder.

The persons speaking, regarded as an object; ourselves; -- the objective case of we. See We.

Capable of being used.

One who has the use of anything in trust for another.

Using; accustomed.

A Turkish tribe which about the close of the 15th century conquered, and settled in, that part of Asia now called Turkestan.

To be wont or accustomed; to be in the habit or practice; as, he used to ride daily; -- now disused in the present tense, perhaps because of the similarity in sound, between /use to,/ and /used to./

Full of use, advantage, or profit; producing, or having power to produce, good; serviceable for any end or object; helpful toward advancing any purpose; beneficial; profitable; advantageous; as, vessels and instruments useful in a family; books useful for improvement; useful knowledge; useful arts.

In a useful manner.

The quality or state of being useful; utility; serviceableness; advantage.

Having, or being of, no use; unserviceable; producing no good end; answering no valuable purpose; not advancing the end proposed; unprofitable; ineffectual; as, a useless garment; useless pity.

One who uses.

To introduce or escort, as an usher, forerunner, or harbinger; to forerun; -- sometimes followed by in or forth; as, to usher in a stranger; to usher forth the guests; to usher a visitor into the room.

The act of ushering, or the state of being ushered in.

The office or position of an usher; ushership; also, ushers, collectively.

Destitute of an usher.

The office of an usher; usherdom.

Denoting usual or customary action.

A genus of lichens, most of the species of which have long, gray, pendulous, and finely branched fronds. Usnea barbata is the common bearded lichen which grows on branches of trees in northern forests.

Pertaining to, or designating, a complex acid obtained, as a yellow crystalline substance, from certain genera of lichens (Usnea, Parmelia, etc.).