Hypercalciuria is a medical condition that refers to abnormally high levels of calcium in the urine. It can be caused by various factors including a diet high in calcium, certain medications, and certain medical conditions such as hyperparathyroidism. There are several synonyms for hypercalciuria such as hypercalcemia, hypercalcinuria, and hyperexcretion of calcium. These terms describe the same condition and are often used interchangeably in medical literature. Regardless of the terminology used, hypercalciuria can lead to the formation of kidney stones and other complications if left untreated. It is important to seek medical attention if you experience any symptoms of hypercalciuria.