详细解释:n. 红细胞增多症, 红血球增多症
【医】 红细胞增多
英语解释：
名词 polycythemia:
a disorder characterized by an abnormal increase in the number of red blood cells in the blood详细解释：
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