Definitions for: Postaxial

Webster (1913) Definition: Post*ax"i*al, a. [Pref. post- + axial.] (Anat.)
Situated behind any transverse axis in the body of an animal;
caudal; posterior; especially, behind, or on the caudal or
posterior (that is, ulnar or fibular) side of, the axis of a
vertebrate limb.