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There are 5 eleven-letter words containing PROTON

ANTIPROTONSantiprotons n. Plural of antiproton.
ANTIPROTON n. the antiparticle of a proton.
PROTONATINGprotonating v. Present participle of protonate.
PROTONATE v. to acquire an additional proton.
PROTONATIONprotonation n. (Chemistry) The addition of a proton (hydrogen ion) to an atom, molecule or ion, normally to generate a cation.
PROTONATION n. the acquisition of an additional proton.
PROTONEMATAprotonemata n. Plural of protonema.
PROTONEMA n. a branched filament produced by germination of a moss spore, giving rise to moss plants from buds.
PROTONOTARYprotonotary n. Alternative spelling of prothonotary.
PROTONOTARY n. a court clerk; a chief clerk of any of various courts of law, also PROTHONOTARY.

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


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