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There are 18 twelve-letter words containing E, F, I, M, O, R, S and U

AMENTIFEROUSamentiferous adj. (Botany) Bearing catkins.
AMENTIFEROUS adj. bearing catkins.
DISCOMFITUREdiscomfiture n. (Obsolete) Defeat in battle.
discomfiture n. An emotional state similar to that arising from defeat; frustration, disappointment, perplexity or embarrassment.
DISCOMFITURE n. the act of discomfiting.
EFFUSIOMETEReffusiometer n. A device that measures the rate of effusion of a gas.
EFFUSIOMETER n. an instrument for comparing the molecular weights of gases.
EQUISETIFORMequisetiform adj. (Botany) Having the form of the Equisetum.
EQUISETIFORM adj. having the form of an equisetum, a horsetail.
FLAMMIFEROUSflammiferous adj. Producing flame.
FLAMMIFEROUS adj. producing flame.
FLITTERMOUSEflittermouse n. (Now chiefly dialectal) A bat (flying mammal).
flitter-mouse n. Alternative form of flittermouse.
FLITTERMOUSE n. (dialect) a bat.
FLUORIMETERSfluorimeters n. Plural of fluorimeter.
FLUORIMETER n. an instrument for measuring fluorescence, also FLUOROMETER.
FORMULARISEDformularised v. Simple past tense and past participle of formularise.
FORMULARISE v. to state in or reduce to a formula, also FORMULARIZE.
FORMULARISERformulariser n. Alternative form of formularizer.
FORMULARISER n. one who formularises, also FORMULARIZER.
FORMULARISESformularises v. Third-person singular simple present indicative form of formularise.
FORMULARISE v. to state in or reduce to a formula, also FORMULARIZE.
FORMULARIZESformularizes v. Third-person singular simple present indicative form of formularize.
FORMULARIZE v. to state in or reduce to a formula, also FORMULARISE.
FUGITOMETERSFUGITOMETER n. an instrument used for measuring the fastness to light of dyed materials.
LUMINIFEROUSluminiferous adj. Producing or transmitting light; luminous.
LUMINIFEROUS adj. bearing or bringing light.
MOSCHIFEROUSmoschiferous adj. (Zoology) secreting musk.
MOSCHIFEROUS adj. producing musk.
PLUMBIFEROUSplumbiferous adj. Producing or containing lead.
PLUMBIFEROUS adj. bearing or yielding lead.
SEMINIFEROUSseminiferous adj. (Botany) producing seed.
seminiferous adj. (Anatomy) conveying, containing, bearing, or producing semen or seminal fluid.
SEMINIFEROUS adj. seed-bearing.
UNFORMALISEDunformalised adj. Alternative form of unformalized.
UNFORMALISED adj. not formalised, also UNFORMALIZED.
UNIFORMITIESuniformities n. Plural of uniformity.
UNIFORMITY n. the state of being uniform.

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: 87 words
  • Scrabble in French: 51 words
  • Scrabble in Spanish: 104 words
  • Scrabble in Italian: 38 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 31 words


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