white blood cells
nounUK /ˌwaɪt ˈblʌd sɛlz/
US /ˌwaɪt ˈblʌd sɛlz/
White blood cells are tiny helpers in your blood that fight germs and keep you healthy.
When you get a cut, your white blood cells rush to the spot to stop germs from getting in.
RELATED WORDS
OTHER MEANINGS
2. Cells of the immune system that protect the body against infectious disease and foreign invaders.
Doctors check the white blood cell count to see if the body is fighting an infection.
3. A laboratory measurement of the number of these cells in a volume of blood.
Her white blood cells were elevated, suggesting an infection.
4. Blood cells that lack hemoglobin and appear colorless under a microscope.
Unlike red blood cells, white blood cells have a nucleus.