• (a.) Beneath the axis of the skeleton; subvertebral; hyposkeletal.
(hi-pak´se-әl) beneath an axis, such as the second cervical vertebra.
Hy·pax'i·al adjective [ Hypo- + axial .] (Anat.) Beneath the axis of the skeleton; subvertebral; hyposkeletal. 
Type: Term Pronunciation: hī-pak′sē-ăl, hip-ak′ Definitions: 1. Below any axis, such as the spinal axis or the axis of a limb. See: hypomere