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
And that’s important, since B vitamins serve a bunch of critical functions, like forming red blood cells and helping your body process food for energy.
—
Caroline Tien, SELF, 23 Apr. 2025
In addition to other benefits, xenon is shown to boost the body’s production of erythropoietin, or EPO, which increases the body’s production of red blood cells.
—Ben Ayers, Outside Online, 10 Apr. 2025
The body needs iron to make hemoglobin, the protein in red blood cells that carry oxygen.
—Joy Emeh, Health, 10 Feb. 2025
Your body uses iron to make hemoglobin, a protein in red blood cells that carries oxygen from your lungs to all parts of your body.2 Vitamin B12 deficiency causes megaloblastic anemia, causing tiredness and weakness.3
Folate (vitamin B9) deficiency is also linked to megaloblastic anemia.
—Allison Herries, Verywell Health, 16 Apr. 2025
See All Example Sentences for red blood cell
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Caroline Tien, SELF, 23 Apr. 2025
In addition to other benefits, xenon is shown to boost the body’s production of erythropoietin, or EPO, which increases the body’s production of red blood cells.
—Ben Ayers, Outside Online, 10 Apr. 2025
The body needs iron to make hemoglobin, the protein in red blood cells that carry oxygen.
—Joy Emeh, Health, 10 Feb. 2025
Your body uses iron to make hemoglobin, a protein in red blood cells that carries oxygen from your lungs to all parts of your body.2 Vitamin B12 deficiency causes megaloblastic anemia, causing tiredness and weakness.3
Folate (vitamin B9) deficiency is also linked to megaloblastic anemia.
—Allison Herries, Verywell Health, 16 Apr. 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 4 May. 2025.
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