CEFR B1

rb

noun

Meaning

A type of blood cell that is made in the bone marrow and has the main function of carrying oxygen from the lungs to the body's tissues and returning carbon dioxide from the tissues to the lungs.

Examples

  • The patient's red blood cell count was normal.
  • Anemia is a condition characterized by a deficiency of red blood cells.

Synonyms: erythrocyte