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Medical Term:


Pronunciation: prō-mī′ĕ-lō-sīt′


  1. The developmental stage of a granular leukocyte between the myeloblast and myelocyte, when a few specific granules appear in addition to azurophilic ones.
  2. A large uninuclear cell occurring in the circulating blood of persons with myelocytic leukemia.

Synonym(s): premyelocyte, progranulocyte

[pro- + G. myelos, marrow, + kytos, cell]