'Radio-' definitions:

Definition of 'Radio-'

From: GCIDE
  • Radio- \Ra"di*o-\ (r[=a]"d[i^]*[-o]-), a.
  • 1. Of or pertaining to, or employing, or operated by, radiant energy, specifically that of electromagnetic waves with frequencies between those of infrared radiation and X-rays; hence, pertaining to, or employed in, broadcast radio or television, microwaves, radiotelephones, etc.; as, radio waves. [Webster 1913 Suppl. +PJC]
  • 2. of or pertaining to broadcast radio; as, a radio program. [PJC]

Definition of 'Radio-'

From: GCIDE
  • Radio- \Ra"di*o-\ (r[=a]"d[i^]*[-o]-). A combining form indicating connection with, or relation to, a radius or ray; specifically (Anat.), with the radius of the forearm; as, radio-ulnar, radio-muscular, radio-carpal. [1913 Webster]