ˌ ̷ ̷ ̷ ̷ˌn(y)üklēˈōsə̇s noun
( plural mononucleo·ses -ˌsēz)
Etymology: New Latin, from International Scientific Vocabulary mononuclear (II) + New Latin -osis
1. : an abnormal increase in the number of agranulocytes in the circulating blood ; specifically : infectious mononucleosis
2. : monocytosis