plural of urine box

A supposed device used in phreaking, capable of causing seizures or physical injury to the person at the other end of the telephone line; actually a hoax.

(pathology) A condition that occurs in cold temperatures, where the victim suffers from hives caused by the cold.

plural of urine bottle

Synonym of pee bottle

A microscopic cylindrical structure produced by the kidney and present in the urine in the case of some diseases

plural of urban warrior

One who lives in a city and has an aggressive, competitive attitude which tends to be focused on physical activity.

(biochemistry) A metabolic cycle of biochemical reactions, occurring in ureotelic organisms, in which highly toxic ammonia is converted to urea for excretion.

(organic chemistry) reaction with uracil