the world > movement > motion in a certain direction > going away > 			[adjective]		 > moving away from a centre (4)		
Moving outward in a radial direction as from a centre; esp. (of light, heat, etc.) emitted by radiation or in the form of radiation.
= centrifugal, adj. Obsolete. rare.
Directed away from the centre, esp. of a circle. Contrasted with centripetal, adj. 1. figurative and in extended use.