Chapter Urchon to Urohyal of U by Webster's Dictionary (1913 Edition)

Urinal
(U"ri*nal) n. [L. urinal, fr. urina urine: cf. F. urinal.]

1. A vessel for holding urine; especially, a bottle or tube for holding urine for inspection.

2. A place or convenience for urinating purposes.

Urinarium
(U`ri*na"ri*um) n. [LL. urinarium.] (Agric.) A reservoir for urine, etc., for manure.

Urinary
(U"ri*na*ry) a. [L. urina urine: cf. F. urinaire.]

1. Of or pertaining to the urine; as, the urinary bladder; urinary excretions.

2. Resembling, or being of the nature of, urine.

Urinary calculus (Med.), a concretion composed of some one or more crystalline constituents of the urine, liable to be found in any portion of the urinary passages or in the pelvis of the kidney. — Urinary pigments, (Physiol. Chem.), certain colored substances, urochrome, or urobilin, uroerythrin, etc., present in the urine together with indican, a colorless substance which by oxidation is convertible into colored bodies.

Urinary
(U"ri*na*ry), n. A urinarium; also, a urinal.

Urinate
(U"ri*nate) v. i. [LL. urinare.] To discharge urine; to make water.

Urination
(U`ri*na"tion) n. The act or process of voiding urine; micturition.

Urinative
(U"ri*na*tive) a. Provoking the flow of urine; uretic; diuretic. [R.] Bacon.

Urinator
(U"ri*na`tor) n. [L., from urinari to plunge under water, to dive.] One who dives under water in search of something, as for pearls; a diver. [R.] Ray.

Urine
(U"rine) n. [F. urine, L. urina; akin to urinari to plunge under water, to dive, Gr. urine; cf. Skr. var water, Icel. r drizzling rain, AS. wær the sea.] (Physiol.) In mammals, a fluid excretion from the kidneys; in birds and reptiles, a solid or semisolid excretion.

In man, the urine is a clear, transparent fluid of an amber color and peculiar odor, with an average density of 1.02. The average amount excreted in 24 hours is from 40 to 60 ounces (about 1,200 cubic centimeters). Chemically, the urine is mainly an aqueous solution of urea, salt and uric acid, together with some hippuric acid and peculiar pigments. It usually has an acid reaction, owing to the presence of acid phosphates of soda or free uric acid. Normally, it contains about 960 parts of water to 40 parts of solid matter, and the daily average excretion is 35 grams (540 grains) of urea, 0.75 gram (11 grains) of uric acid, and 16.5 grams (260 grains) of salt. Abnormally, it may contain sugar as in diabetes, albumen as in Bright's disease, bile pigments as in jaundice, or abnormal quantities of some one or more of the normal constituents.

Urine
(U"rine), v. i. To urinate. [Obs.] Bacon.

Uriniferous
(U`ri*nif"er*ous) a. [Urine + - ferous.] Bearing or conveying urine; as, uriniferous tubules.

Uriniparous
(U`ri*nip"a*rous) a. [Urine + L. parere to produce: cf. F. urinipare.] (Physiol.) Producing or preparing urine; as, the uriniparous tubes in the cortical portion of the kidney.

Urinogenital
(U`ri*no*gen"i*tal) a. (Anat.) Pertaining to the urinary and genital organs; genitourinary; urogenital; as, the urinogenital canal.

Urinometer
(U`ri*nom"e*ter) n. [Urine + - meter.] A small hydrometer for determining the specific gravity of urine.