diaphysis Meaning, Definition & Usage

  1. noun the main (mid) section of a long bone
    shaft.

WordNet

Di*aph"y*sis noun
Etymology
Gr. a growing through; through + to bring forth.
Definitions
  1. (Bot.) An abnormal prolongation of the axis of inflorescence.
  2. (Anat.) The shaft, or main part, of a bone, which is first ossified.

Webster 1913