Stimula Blood Sugar erythrocyte: An anucleate cell in the blood associated with the vehicle of oxygen. Likewise called a red platelet due to the red shading of hemoglobin. hemoglobin: The iron-containing substance in red platelets that transports oxygen from the lungs to the remainder of the body. It comprises of a protein (globulin) and haem (a porphyrin ring with an iota of iron at its middle).