red blood cell

noun

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.

Also called erythrocyte, red cell, red blood corpuscle.

Origin

1905-10

Examples from the web for red blood cell

All it would take is for a single spore, barely bigger than a red blood cell, to latch onto the shirt of an oblivious traveler.
Folate, also called folic acid, is necessary for red blood cell formation and growth.
The red blood cell count is normal or close to normal, and the patient is not underweight.
After this time, they are broken down into parts that can make a new red blood cell.
Her red blood cell count and platelets had dropped to perilous levels.
One treatment involves transfusions or injections of erythropoietin, a drug that increases red blood cell production.
Researchers have developed a laser smaller than a red blood cell that can be tuned to emit different colors.
They expose the spheres to rubbing alcohol, which causes them to deflate and collapse into the dimpled shape of a red blood cell.

British Dictionary definitions for red blood cell

red blood cell

noun

another name for erythrocyte

red blood cell in Medicine

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.

red blood cell in Science

red blood cell
Any of the oval or disc-shaped cells that circulate in the blood of vertebrate animals, contain hemoglobin, and give blood its red color. The hemoglobin in red blood cells binds to oxygen for transport and delivery to body tissues, and it transports carbon dioxide, excreted as a metabolic waste product, out of the tissues. The red blood cells of mammals have no nucleus, while those of other vertebrates do contain nuclei. Red blood cells are formed in the bone marrow. Also called erythrocyte.

Our Living Language : While 60 percent of the US population is eligible to donate blood, only about 5 percent does. There is no substitute for human blood, which is used for numerous medical situations, including surgery for trauma, cancer treatment, organ transplants, burns, open heart surgeries, anemia, clotting disorders, and treating premature babies. The average red blood cell transfusion is 3.4 pints. Blood, which is made in the bone marrow, has four main components—red cells, platelets, plasma, and white cells. Red blood cells, or erythrocytes, transport oxygen from the lungs to the rest of the body. These disk-shaped cells contain hemoglobin, an iron-containing protein that picks up oxygen molecules as the blood exchanges gases in the lungs. The red blood cells, which can live about 120 days in the circulatory system, deliver oxygen to the far reaches of the body, where it is released for use by other cells, such as those of the brain and muscles. Red blood cells also pick up carbon dioxide and return it to the lungs to be exhaled. All animals have some form of oxygen distribution system, but only vertebrates use red blood cells. In some invertebrates, such as the earthworm, oxygen is transported using hemoglobin that is freely dissolved in the blood. Other invertebrates don't use hemoglobin at all. The horseshoe crab, for instance, uses copper instead of iron, making its blood blue instead of red.