metamyelocyte

[mĕt′ə-mīə-lə-sīt′]
n.
  1. A transitional form of myelocyte having a nuclear construction intermediate between the mature myelocyte and the two-lobed granulocyte.juvenile cell
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.