| Physiology. one of the cells of the blood, which in mammals are enucleate disks concave on both sides, contain hemoglobin, and carry oxygen to the cells and tissues and carbon dioxide back to the respiratory organs. Abbreviation: RBC |
red blood cell n.
Abbr. RBC, rbc
A disk-shaped, biconcave cell in the blood that contains hemoglobin, lacks a nucleus, and transports oxygen and carbon dioxide to and from the tissues. Also called erythrocyte, red cell, red corpuscle.