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There are 4 fifteen-letter words containing OIONI

AUTOIONISATIONSautoionisations n. Plural of autoionisation.
AUTOIONISATION n. self-ionizing, also AUTOIONIZATION.
AUTOIONIZATIONSautoionizations n. Plural of autoionization.
AUTOIONIZATION n. self-ionizing, also AUTOIONISATION.
PHOTOIONISATIONphotoionisation n. (Physics) The ejection of electrons from an atom or other species following the absorption of photons.
PHOTOIONISATION n. ionization (as in the ionosphere) of a molecule or atom caused by absorption of radiant energy, also PHOTOIONIZATION.
PHOTOIONIZATIONphotoionization n. Alternative spelling of photoionisation.
PHOTOIONIZATION n. ionization (as in the ionosphere) of a molecule or atom caused by absorption of radiant energy, also PHOTOIONISATION.

Scrabble words — in black are valid world wide — in RED are not valid in North America — in GREEN are valid only in North America.
Definitions are short excerpt from the WikWik.org and 1Word.ws.

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See this list for:

  • English Wiktionary: 4 words
  • Scrabble in French: no word
  • Scrabble in Spanish: no word
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: 2 words


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