A conical section of bone between the epiphysis and diaphysis of long bones. [meta- + G. physis, growth]
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me·taph·y·sis mə-'taf-ə-səs n, pl -y·ses -.sēz the transitional zone at which the diaphysis and epiphysis of a bone come together
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n.
the growing portion of a long bone that lies between the epiphysis (the ends) and the diaphysis (the shaft).
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me·taph·y·sis (mə-tafґə-sis) pl. metaphґyses [meta- + physis] [TA] the wider part at the extremity of the shaft of a long bone, adjacent to the epiphyseal disk. During development it contains the growth zone and consists of spongy bone; in the adult it is continuous with the epiphysis. metaphyseal adjMedical dictionary. 2011.