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
Some examples include red blood cell formation, brain function, skin health, converting food to energy, heart health, and much more.8
There are 13 essential vitamins.
—
Isabel Vasquez Rd Ldn, Health, 24 June 2025
With gene editing, scientists are able to input code into the body’s genes that tell it to stop producing the mutation that is causing the abnormal red blood cells.
—Michelle Marchante, Miami Herald, 19 June 2025
Although blood clots are partially made up of red blood cells, they're held together by tangles of a thread-like protein known as fibrin.
—Ben Coxworth, New Atlas, 7 June 2025
In people with a rare genetic deficiency of an enzyme called G6PD, methylene blue can cause a dangerous condition in which red blood cells break down too quickly.
—Lorne J. Hofseth, The Conversation, 3 June 2025
See All Example Sentences for red blood cell
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Isabel Vasquez Rd Ldn, Health, 24 June 2025
With gene editing, scientists are able to input code into the body’s genes that tell it to stop producing the mutation that is causing the abnormal red blood cells.
—Michelle Marchante, Miami Herald, 19 June 2025
Although blood clots are partially made up of red blood cells, they're held together by tangles of a thread-like protein known as fibrin.
—Ben Coxworth, New Atlas, 7 June 2025
In people with a rare genetic deficiency of an enzyme called G6PD, methylene blue can cause a dangerous condition in which red blood cells break down too quickly.
—Lorne J. Hofseth, The Conversation, 3 June 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 1 Jul. 2025.
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