Definitions for: Diaphysis

[n] the main (mid) section of a long bone

Webster (1913) Definition: Di*aph"y*sis, n. [Gr. ? a growing through; dia`
through + ? to bring forth.]
1. (Bot.) An abnormal prolongation of the axis of
inflorescence.

2. (Anat.) The shaft, or main part, of a bone, which is first
ossified.

Synonyms: shaft

See Also: long bone, os longum