Etymology

radiopharmaceutical

Today it means: Any radioactive substance used as a pharmaceutical. Full definition →

English pharmaceutical ← Latin radius
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The story

  1. Latinradius
  2. Englishradio-
  3. Englishpharmaceutical
  4. English todayradiopharmaceutical

From radio- + pharmaceutical.

Etymology from Wiktionary, CC BY-SA 4.0.