metaphysis

from WordNet (r) 3.0 (2006)
metaphysis
    n 1: the growing part of a long bone between the diaphysis and
         the epiphysis
    
from The Collaborative International Dictionary of English v.0.48
Metaphysis \Me*taph"y*sis\, n. [NL., fr. Gr. ? after + ?
   nature.]
   Change of form; transformation.
   [1913 Webster]
    

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