Definition of megakaryoblast in English:

megakaryoblast

Pronunciation /ˌmɛɡəˈkarɪə(ʊ)blɑːst/ /ˌmɛɡəˈkarɪə(ʊ)blast/

noun

Physiology
  • A cell which develops into a megakaryocyte.

Origin

1940s; earliest use found in American Journal Clinical Pathology. From megakaryo- + -blast.