Wiktionary
a. In a radial arrangement resembling a hand-held fan. adv. In a fanwise manner.
Usage examples of "fanwise".
To one coming down Split River Pass toward the cupped, alluvial plain at its foot, the buttes seemed to spread fanwise toward the southern horizon, lines and clusters of level-topped, sheer-sided mountains, all that was left of the great mesa that had lain at the foot of the mountains in time immemorial, now chewed by the river into these obdurate leftovers.
In the flowing ascot tie that spread downward fanwise from his chin was thrust the customary stickpin that no well-dressed man was ever without, in this case a crescent of diamond splinters tipped by a ruby chip at each end.
The body cavity was laid open, with internal organs spread out fanwise, and Bram did not care for too close a look.
The nose cap of the second had opened fanwise, like an iris diaphragm, and a pair of jointed metal arms were folded inside, hugging a medium-sized diamond.
Fanwise as they have come, the Gakkos swim through the quaking grass to the woods that swallow them up.