my·e·lo·cy·to·sis \ˌmīəlōˌsīˈtōsə̇s\noun (pluralmyelocyto·ses \-tōˌsēz\) Etymology: New Latin, from International Scientific Vocabulary myelocyte + New Latin -osis : the presence of excess numbers of myelocytes in blood, bone marrow, or other parts of the body