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There are 17 twelve-letter words containing A, I, 2M, O, 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.
COLUMBARIUMScolumbariums n. Plural of columbarium.
COMMEASURINGcommeasuring v. Present participle of commeasure.
COMMEASURE v. to be commensurate with; to equal.
COMMUNALISERCOMMUNALISER n. one who communalises, also COMMUNALIZER.
CREMATORIUMScrematoriums n. Plural of crematorium.
CREMATORIUM n. a place where bodies are cremated, also CREMATORY.
FLAMMIFEROUSflammiferous adj. Producing flame.
FLAMMIFEROUS adj. producing flame.
GOURMANDISMSGOURMANDISM n. the state of being a gourmand.
GYMNATORIUMSgymnatoriums n. Plural of gymnatorium.
HARMONIUMISTharmoniumist n. Someone who plays a harmonium.
HARMONIUMIST n. one who plays the harmonium.
MESOGASTRIUMmesogastrium n. (Anatomy) The part of the embryonic mesentery that includes the stomach.
MESOGASTRIUM n. the mesentery supporting the embryonic stomach.
MISDEMEANOURmisdemeanour n. (British spelling) Alternative form of misdemeanor.
MISDEMEANOUR n. in UK formerly, a crime less serious than a felony, also MISDEMEANOR.
MURMURATIONSmurmurations n. Plural of murmuration.
MURMURATION n. murmuring.
PRASEODYMIUMpraseodymium n. A chemical element (symbol Pr) with an atomic number of 59, a soft, silvery, malleable and ductile metal…
PRASEODYMIUM n. a chemical element, a metal with green salts, isolated from the once-supposed element didymium.
PROGYMNASIUMprogymnasium n. In Germany, a classical school without the higher classes; a school preparatory to a gymnasium.
PROGYMNASIUM n. in Germany, a gymnasium for pupils up to age 16 only, at which university entrance qualifications are not obtainable.
SPERMAGONIUMspermagonium n. (Lichenology) Alternative spelling of spermogonium.
SPERMAGONIUM n. a receptacle in which spermatia are produced in some fungi and lichens.
SUBMICROGRAMsubmicrogram adj. Being or relating to a quantity of less than a microgram.
submicrogram n. An amount that is less than a microgram.
SUBMICROGRAM adj. relating to or having a mass of less than one microgram.
TAUTOMERISMStautomerisms n. Plural of tautomerism.
TAUTOMERISM n. possession of more than one structure by a substance.

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: 48 words
  • Scrabble in French: 25 words
  • Scrabble in Spanish: 142 words
  • Scrabble in Italian: 117 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 27 words


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