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radio-

prefix

  1. combining form meaning "radiant energy : radiation"
  2. combining form meaning "radioactive"
  3. combining form meaning "radium : X-rays"
  4. combining form meaning "radioactive isotopes especially as produced artificially"
  5. combining form meaning "radio"
  6. combining form meaning "radius bone"
L1370876 on Wikidata ↗

Wiktionary

prefix

Etymology: Derived from Latin radius (“ray”). By surface analysis, clipping of radiation + -o-.

  1. radiation, radioactive

    e.g. radiotherapy, radioactinium, radiolucent

  2. radio (broadcasting)

    e.g. radiotelemetry, radioacoustics, radiotelegraph

  3. radius (bone)

    e.g. radiobicipital

  4. radius

    e.g. radiosymmetrical