What is "microcytosis"

n. (context pathology English) A condition characterized by the presence of microcytes in the blood

n. a blood disorder characterized by the presence of microcytes (abnormally small red blood cells) in the blood; often associated with anemia

Microcytosis is a condition in which red blood cells are unusually small as measured by their mean corpuscular volume.

It is also known as "microcythemia". When associated with anemia, it is known as microcytic anemia.