urinometer
/ˌjʊrɪˈnɑmɪtər/
noun
- An instrument used to measure the specific gravity (density) of urine, often to check kidney function or hydration.
- The nurse used a urinometer to test the patient's urine sample.
- A urinometer floats in the urine and gives a reading on its scale.
- In the lab, the technician cleaned the urinometer after each use.