red blood cell
noun
variants
or less commonly red blood corpuscle
or red cell
or red corpuscle
: any of the hemoglobin-containing cells that carry oxygen to the tissues and in mammals are typically biconcave disks which lack a nucleus and cellular organelles and are formed from nucleated cells of the red bone marrow
Note: The number of red blood cells ranges from four to six million in each cubic millimeter of normal human blood. The red color of blood is due to the presence of hemoglobin within the red blood cells.
called also erythrocyte
compare white blood cellExamples of red blood cell in a Sentence
Recent Examples on the Web
Hemoglobin is a protein in red blood cells that carries oxygen from your lungs to the rest of your body.15
Are There Risks To Drinking Beet Juice?
Beet juice is thought to be safe when consumed in moderate amounts.16
Beet juice may cause your urine to turn pink or red.
—
Lindsey Desoto, Health, 10 June 2025
The belief is that the antigens on the red blood cells are also in the digestive tract and will influence how the body reacts to the foods consumed.
—Patty Weasler, Verywell Health, 5 June 2025
Carbon monoxide attaches to hemoglobin and doesn’t let go, making those red blood cells unavailable to carry oxygen for many hours.
—Alex Hutchinson, Outside Online, 2 June 2025
These tents create a low-oxygen environment, which definitely increases EPO and red blood cell production.
—Stephanie Pappas, Scientific American, 29 May 2025
See All Example Sentences for red blood cell
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Lindsey Desoto, Health, 10 June 2025
The belief is that the antigens on the red blood cells are also in the digestive tract and will influence how the body reacts to the foods consumed.
—Patty Weasler, Verywell Health, 5 June 2025
Carbon monoxide attaches to hemoglobin and doesn’t let go, making those red blood cells unavailable to carry oxygen for many hours.
—Alex Hutchinson, Outside Online, 2 June 2025
These tents create a low-oxygen environment, which definitely increases EPO and red blood cell production.
—Stephanie Pappas, Scientific American, 29 May 2025
See All Example Sentences for red blood cell
Cite this Entry
“Red blood cell.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/red%20blood%20cell. Accessed 19 Jun. 2025.
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