Definition of myeloblastosis in English:

myeloblastosis

Pronunciation /ˌmʌɪələ(ʊ)blaˈstəʊsɪs/

noun

Medicine
  • Excessive proliferation of myeloblasts, resulting in their presence in the peripheral blood or tissues other than the bone marrow; specifically (more fully "avian myeloblastosis") a form of avian leukosis characterized by myeloblastic leukaemia.

    Now frequently in "avian myeloblastosis virus", the oncornavirus that causes myeloblastosis and certain other tumours and disorders in poultry.

Origin

1930s. From myeloblast + -osis.