What is "radio-"

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.

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.

2. of or pertaining to broadcast radio; as, a radio program.

word-forming element meaning

1. "ray, ray-like" (see radius);

2. "radial, radially" (see radial (adj.));

3. "by means of radiant energy" (see radiate (v.));

4. "radioactive" (see radioactive);

5. "by radio" (see radio (n.)).

pre. 1 radiation 2 radio (broadcasting) 3 (context anatomy English) radius (bone)