noun
- a protein in red blood cells that carries oxygen from the lungs to the tissues and carbon dioxide back to the lungs
Usage: also spelled hemoglobin (U.S. spelling); technical/medical term
Examples
- Haemoglobin levels are measured to diagnose anemia.
- The iron in haemoglobin gives blood its red color.
- Patients with sickle cell disease produce abnormal haemoglobin.
- A blood test showed her haemoglobin was lower than normal.
- Haemoglobin binds to oxygen molecules in the lungs.