1. polycythemia

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


  • blood disease


  • hypervolemia

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Sentences with polycythemia

1. Noun, singular or mass
It usually takes a while for Fluffy's red blood cell count to rise in a case of absolute polycythemia, so early signs may be subtle.

2. Adjective
If nothing appears to be amiss with your cat's organs or overall health, the diagnosis will be polycythemia vera.

3. Verb, past participle
A B12 blood test to find elevated B12 levels can tell if someone has polycythemia vera.