from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A condition marked by an abnormally large number of red blood cells in the circulatory system.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A rare disorder in which the bone marrow produces an abnormally large amount of blood cells, often red blood cells.
from The Century Dictionary and Cyclopedia
- n. Excess of red corpuscles in the blood.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a disorder characterized by an abnormal increase in the number of red blood cells in the blood
poly- + cyt(o)- + -hemia.(American Heritage® Dictionary of the English Language, Fourth Edition)