radial vs tortile

radial

adj
  • Moving along a radius. 

  • Developing uniformly on all sides. 

  • Of, or relating to the radius bone. 

  • Of, or relating to the radius (vein), and/or the wing areas next to it. 

  • Arranged like rays that radiate from, or converge to a common centre. 

noun
  • A radial tire / radial tyre. 

tortile

adj
  • Twisted, winding, contorted. 

How often have the words radial and tortile occurred in a corpus of books? (source: Google Ngram Viewer )