Wiktionary
radial curve
n. (context mathematics English) Any of a family of curves that are the locus of points that have a defined relationship between a fixed point and the centre of curvature at each point on another curve
Usage examples of "radial curve".
The three interceptors returned on a radial curve of 800,000 kilometres and after 90 minutes reached the prescribed orbit, just ahead of the Arkonide spaceship.