noun Date: 1920 an acute infectious disease caused by the Epstein-Barr virus and characterized by fever, swelling of lymph nodes, and lymphocytosis
INFECTIOUS MONONUCLEOSIS
Meaning of INFECTIOUS MONONUCLEOSIS in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012