The Collaborative International Dictionary of English v.0.48:
Axially \Ax"i*al*ly\, adv. In relation to, or in a line with, an axis; in the axial (magnetic) line. [1913 Webster]WordNet (r) 3.0 (2006):
axially adv 1: with respect to an axis; "the jet was directed axially toward the cathode"