1. a medical condition characterized by the presence of abnormally large red blood cells in the blood
Usage: medical

Examples

• The blood test revealed macrocytosis, indicating possible vitamin B12 deficiency.
• Macrocytosis can be caused by folate deficiency or alcohol abuse.
• The doctor ordered additional tests after detecting macrocytosis in the patient’s blood work.
• Treatment of the underlying cause helped resolve the patient’s macrocytosis.
• Macrocytosis is often discovered during routine blood screening.
• The hematologist explained that macrocytosis means the red blood cells are larger than normal.