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There are 7 twelve-letter words containing H, 2I, N, 3O and T

OPISTHOTONICopisthotonic adj. Relating to opisthotonus.
OPISTHOTONIC adj. of or like opisthotonos, extreme arching backwards of the spine and neck as a result of spasm of the muscles in that region.
ORNITHOLOGICornithologic adj. Of or relating to ornithology; ornithological.
ORNITHOLOGIC adj. relating to ornithology, also ORNITHOLOGICAL.
PHOTOFISSIONphotofission n. (Nuclear physics) Nuclear fission as the result of the absorption of a gamma ray or other high-energy photon.
photofission v. (Nuclear physics) To undergo, or cause to undergo, photofission.
PHOTOFISSION n. nuclear fission induced by gamma rays.
PHOTOIONISEDphotoionised adj. Alternative spelling of photoionized.
PHOTOIONISE v. to ionize by electromagnetic radiation, also PHOTOIONIZE.
PHOTOIONISESPHOTOIONISE v. to ionize by electromagnetic radiation, also PHOTOIONIZE.
PHOTOIONIZEDphotoionized v. Simple past tense and past participle of photoionize.
photoionized adj. Subject to, or produced by photoionization.
PHOTOIONIZE v. to ionize by electromagnetic radiation, also PHOTOIONISE.
PHOTOIONIZESphotoionizes v. Third-person singular simple present indicative form of photoionize.
PHOTOIONIZE v. to ionize by electromagnetic radiation, also PHOTOIONISE.

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: 30 words
  • Scrabble in French: 2 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: 3 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 17 words


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