Definition: Any condition in which the number of red blood cells/mm3, the amount of hemoglobin in 100 mL of blood, and/or the volume of packed red blood cells/100 mL of blood are less than normal; clinically, generally pertaining to the concentration of oxygen-transporting material in a designated volume of blood, in contrast to total quantities as in oligocythemia, oligochromemia, and oligemia. Anemia is frequently manifested by pallor of the skin and mucous membranes, shortness of breath, palpitations of the heart, soft systolic murmurs, lethargy, and tendency to fatigue.
[G. anaimia, fr. an- priv. + haima, blood]
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