polycythemia

名词 polycythemia:

1. a disorder characterized by an abnormal increase in the number of red blood cells in the blood

pol.y.cy.the.mi.a

n.（名词）
A condition marked by an abnormally large number of red blood cells in the circulatory system.
红血球增多症：特征为循环系统中存在不正常的大量红血球