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Meaning of mononucleosis

mon•o•nu•cle•o•sis

Pronunciation: (mon"u-n"klē-ō'sis, -ny"-), [key]
— n. Pathol.
  1. the presence of an abnormally large number of mononuclear leukocytes, or monocytes, in the blood.
  2. See
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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