n. A viral infection marked by extreme fatigue, high fever, and swollen lymph nodes, caused by an unusually high number of monocytes.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. an acute disease characterized by fever and swollen lymph nodes and an abnormal increase of mononuclear leucocytes or monocytes in the bloodstream; not highly contagious; some believe it can be transmitted by kissing
Word Usage
"-- RB Rolandon Finch, who had the end of his freshman year wiped out by mononucleosis, is expected back for spring."