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There are 7 twelve-letter words containing I, 2M, 2O, R, S and U

AUTOMORPHISMautomorphism n. (Algebra) An isomorphism of a mathematical object or system of objects onto itself.
automorphism n. The ascription to others of one’s own characteristics.
AUTOMORPHISM n. ascription to others of one's own characteristics.
HOMOIOMEROUShomoiomerous adj. Alternative form of homoeomerous.
HOMOIOMEROUS adj. having all the somites alike, also HOMEOMERIC, HOMEOMEROUS, HOMOEOMERIC, HOMOEOMEROUS.
MESOTHORIUMSmesothoriums n. Plural of mesothorium.
MESOTHORIUM n. an old name for either of two radioactive elements.
MICROSTOMOUSMICROSTOMOUS adj. having an unusually small mouth, also MICROSTOMATOUS.
MUSHROOMIESTMUSHROOMY adj. of or like a mushroom.
MUSHROOMINGSmushroomings n. Plural of mushrooming.
MUSHROOMING n. rapid growth.
SPERMOGONIUMspermogonium n. (Lichenology) A conceptacle of certain lichens, containing spermatia.
SPERMOGONIUM n. a flask-shaped structure in some fungi, also SPERMOGONE.

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 1Word.ws and WikWik.org.

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See this list for:

  • English Wiktionary: 44 words
  • Scrabble in French: 5 words
  • Scrabble in Spanish: 20 words
  • Scrabble in Italian: 46 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 15 words


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