polycythemia
noun
poly·cy·the·mia ˌpä-lē-(ˌ)sī-ˈthē-mē-ə 
: a condition marked by an abnormal increase in the number of circulating red blood cells
specifically : polycythemia vera
polycythemic
ˌpä-lē-(ˌ)sī-ˈthē-mik
adjective 
Word History
Etymology
borrowed from German Polycythaemie, from poly- poly- + cyt- cyt- + -haemie -hemia
First Known Use
circa 1857, in the meaning defined above
Phrases Containing polycythemia
Medical Definition
polycythemia
noun
poly·cy·the·mia
variants or chiefly British polycythaemia
-(ˌ)sī-ˈthē-mē-ə
: a condition marked by an abnormal increase in the number of circulating red blood cells
especially : polycythemia vera compare erythrocytosis