Excretion of abnormally large amounts of calcium in the urine, as in hyperparathyroidism and types of hereditary hypophosphatemic rickets. SYN: calcinuric diabetes, hypercalcinuria, hypercalcuria.
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hy·per·cal·ci·uria -.kal-sē-'yu̇r-ē-ə also hy·per·cal·cin·uria -.kal-sə-'nu̇r-ē-ə n the presence of an excess amount of calcium in the urine
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hy·per·cal·ci·uria (hi″pər-kal″se-uґre-ə) excess of calcium in the urine, such as in hypercalcemic conditions or in defective renal tubular reabsorption of calcium; some types predispose the patient to formation of renal calculi.Medical dictionary. 2011.