Source : Webster's Revised Unabridged Dictionary (1913)

Myeloplax \My*el"o*plax\, n.; pl. E. {Myeloplaxes}, L.
   {Myeloplaces}. [NL., fr. Gr. ? marrow + ? anything flat and
   broad.] (Anat.)
   One of the huge multinucleated cells found in the marrow of
   bone and occasionally in other parts; a giant cell. See
   {Osteoclast}.