Definition of Hemoglobin The iron-containing substance in red blood cells that transports oxygen from the lungs to the rest of the body; it consists of a protein (globulin), and haem (a porphyrin ring with an atom of iron at its centre).
How to use Hemoglobin in a Sentence?
- 1. The chlorophyll of the leaves and the hemoglobin of the blood are similar in constitution. 🔊