radio- — ONAD

radio- /ˈrādēō, ˈreɪdioʊ

▸ combining form

1 denoting radio waves or broadcasting:

radio-controlled

radiogram.

2 Physics connected with rays, radiation, or radioactivity:

radiogenic

radiograph.

▪ denoting artificially prepared radioisotopes of elements:

radio-cobalt.

3 Anatomy belonging to the radius in conjunction with some other part:

radio-carpal.

– ORIGIN late 19th century : from radio or radius.