mononucleosis

noun mono·nu·cle·o·sis \-ˌnü-klē-ˈō-səs, -ˌnyü-\

medical : a disease that makes people very tired and weak for a long time

Full Definition of MONONUCLEOSIS

: an abnormal increase of mononuclear white blood cells in the blood; specifically : infectious mononucleosis

See mononucleosis defined for English-language learners

New Latin, from International Scientific Vocabulary mononuclear + New Latin -osis

First Known Use: 1920

Medical Dictionary

noun mono·nu·cle·o·sis \-ˌn(y)ü-klē-ˈō-səs\

: an abnormal increase of mononuclear white blood cells in the blood; specifically : infectious mononucleosis

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