Etymology

radionuclide

R1A1D2I1O1N1U1C3L1I1D2E1

Today it means: a radioactive nuclide Full definition →

English nuclide ← Latin radius
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The story

  1. Latinradius
  2. Englishradio-
  3. Englishnuclide
  4. English todayradionuclide

From radio- + nuclide.

Etymology from Wiktionary, CC BY-SA 4.0.