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Urac

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• Urachus

  urachus u·ra·chus (yur’ə-kəs) n. The portion of the reduced allantoic stalk between the apex of the bladder and the umbilicus. u’ra·chal adj.

• Uracil

  noun 1. Biochemistry. a pyrimidine base, C 4 H 4 N 2 O 2 , that is one of the fundamental components of RNA, in which it forms base pairs with adenine. Symbol: U. noun 1. (biochem) a pyrimidine present in all living cells, usually in a combined form, as in RNA. Formula: C4H4N2O2 uracil […]

• Uraemia

  noun, Pathology. 1. uremia. noun, Pathology. 1. a condition resulting from the retention in the blood of constituents normally excreted in the urine. noun 1. (pathol) the accumulation of waste products, normally excreted in the urine, in the blood: causes severe headaches, vomiting, etc Also called azotaemia noun 1. the usual US spelling of uraemia […]

• Uraemic

  noun, Pathology. 1. uremia. adjective, Pathology. 1. pertaining to uremia. 2. afflicted with uremia. noun 1. (pathol) the accumulation of waste products, normally excreted in the urine, in the blood: causes severe headaches, vomiting, etc Also called azotaemia

• Uraeus

  noun, plural uraeuses. 1. the sacred asp as represented upon the headdress of divinities and royal personages of ancient Egypt, usually directly over the forehead, as an emblem of supreme power. noun (pl) -uses 1. the sacred serpent represented on the headdresses of ancient Egyptian kings and gods

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