postaxial

Located behind an axis of the body, as the lateral aspect of the lower leg or the medial aspect of the upper arm.

Of or pertaining to, or situated upon, that side of the axis of either fore or hind limb of a vertebrate which is posterior when the limb is extended at a right angle to the long axis of the body: opposed to preaxial.

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.

Situated behind any transverse axis in the body of an animal; caudal; posterior.