Etymology

transplutonium

T1R1A1N1S1P3L1U1T1O1N1I1U1M3

Today it means: Describing elements having an atomic number greater than that of plutonium (94). Full definition →

English plutonium ← Middle English Pluto ← Latin Plūtō
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The story

  1. Englishtrans-
  2. Ancient GreekΠλούτων (Ploútōn)
  3. LatinPlūtō
  4. Middle EnglishPluto
  5. EnglishPluto
  6. Englishplutonium
  7. English todaytransplutonium

From trans- + plutonium.

Etymology from Wiktionary, CC BY-SA 4.0.