Meaning of RADIAL in English
In anatomy, radial pertains to the radius, the smaller of the two bones on the thumb's side of the forearm. (The bigger one is the ulna). The word radius comes unchanged from the Latin meaning a spoke in a wheel which this bone was thought to resemble. The word radiation is derived from the same Latin word, radius.
English dictionary of medicine. Английский словарь медицины. 2012