red blood cell

See synonyms for red blood cell on Thesaurus.com

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

Origin of red blood cell

First recorded in 1905–10

Also called erythrocyte, red cell, red blood corpuscle.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use red blood cell in a sentence

It also occurs in diseases with extensive and rapid destruction of red blood-corpuscles.
A Manual of Clinical Diagnosis | James Campbell Todd
(b) Blood-casts contain red blood-corpuscles, usually much degenerated (Figs. 45 and 60).
A Manual of Clinical Diagnosis | James Campbell Todd
There are, moreover, opsonins for other formed elements—red blood-corpuscles, for example.
A Manual of Clinical Diagnosis | James Campbell Todd
Some of them seemed to be simply swollen red blood corpuscles, ready to burst, or as it were, suppurate.
Report on Surgery to the Santa Clara County Medical Society | Joseph Bradford Cox
We are unaware of a second place of formation of the red blood corpuscles in man.
Histology of the Blood | Paul Ehrlich

British Dictionary definitions for red blood cell

red blood cell

noun

another name for erythrocyte

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for red blood cell

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

a closer look

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.

Browse