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Urodela
- An order of amphibians having the tail well developed and often long. It comprises the salamanders, tritons, and allied animals.
Urodelian
- Of or pertaining to the Urodela. -- n. One of the Urodela.
Uroerythrin
- 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.
Urogastric
- Behind the stomach; -- said of two lobes of the carapace of certain crustaceans.
Uroglaucin
- 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.
Urohaematin
- 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.
Urohyal
- Of or pertaining to one or more median and posterior elements in the hyoidean arch of fishes. -- n. A urohyal bone or cartilage.
Uromere
- Any one of the abdominal segments of an arthropod.
Uronology
- That part of medicine which treats of urine.
Uropod
- 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.