red blood cells
nounUK /rɛd blʌd sɛlz/
US /rɛd blʌd sɛlz/
Red blood cells are tiny red parts of your blood that carry oxygen around your body.
Red blood cells give blood its red color and help you breathe.
RELATED WORDS
OTHER MEANINGS
2. The most common type of blood cell in vertebrates, containing hemoglobin for oxygen transport.
A drop of blood contains millions of red blood cells.
3. Cells that lack a nucleus in mammals and are shaped like biconcave disks.
Mature red blood cells in humans have no nucleus.
4. A clinical measure often counted in a complete blood count test.
The doctor checked her red blood cell count for signs of anemia.