The Collaborative International Dictionary of English v.0.48:
Radially \Ra"di*al*ly\ (r[=a]"d[i^]*al*l[y^]), adv. In a radial manner. [1913 Webster]WordNet (r) 3.0 (2006):
radially adv 1: in a radial manner; "an imaginative dispersal of the pews radially from the central focus of the pulpit"