Definitions for "FUS"
Feline Urologic Syndrome. A disease of the urinary tract often responsible for blockage of the urethra in male cats. A life threatening situation
feline urologic syndrome (now termed feline lower urinary tract disease)
Feline Urological Syndrome. Urinary tract disease. Signs include straining to pass urine, blood in the urine, passing small amounts of urine and crying when urinating. Also called Feline Lower Urinary Tract Disease (FLUTD)