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
mon.o.nu.cle.o.sis n.（名词）The presence of an abnormally large number of white blood cells with single nuclei in the bloodstream.单细胞增多症：血液中单核白血细胞的异常增多Infectious mononucleosis.传染性单核细胞增多症 来源：mono-mono-nucle(us)nucle(us)-osis-osis
