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red blood cells

Cultural  
  1. The disk-shaped cells in the blood that contain hemoglobin. The red blood cells supply oxygen to all body cells and remove the carbon dioxide wastes that result from metabolism.


Example Sentences

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Once you donate blood, it is taken to a lab, where it is separated into three components: platelets, red blood cells, and plasma.

From Slate • May 9, 2026

The common thread is that malignant cells overtake the marrow—the tissue that produces white blood cells to fight infection, red blood cells to carry oxygen, and platelets to prevent bleeding.

From The Wall Street Journal • Apr. 19, 2026

People living with sickle cell disease have red blood cells that are crescent shaped due to a gene mutation.

From Los Angeles Times • Feb. 23, 2026

Evidence of accelerated aging and increased breakdown of red blood cells was visible after the 40 kilometer race and was even more pronounced among athletes who completed the 171 kilometer event.

From Science Daily • Feb. 21, 2026

The bone marrow is the chief producer of red blood cells throughout life, sending some 10 million new cells per second into the bloodstream of man.

From "Silent Spring" by Rachel Carson

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