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 There are 6 twelve-letter words containing I, M, P, R, S, 2T and Y| CRYPTARITHMS | • cryptarithms n. Plural of cryptarithm. • CRYPTARITHM n. an arithmetic problem in which letters have been substituted for numbers and which is solved by finding all possible pairings of digits with letters that produce a numerically correct answer.
 |  | CRYPTOGAMIST | • cryptogamist n. (Dated) One skilled in cryptogamic botany. • CRYPTOGAMIST n. one who studies cryptogams.
 |  | HYPSOMETRIST | • HYPSOMETRIST n. a practitioner of hypsometry, the measuring the heights of places on the earth's surface. |  | NYCTITROPISM | • nyctitropism n. (Botany) Synonym of nyctinasty. • NYCTITROPISM n. the assumption by plants of certain positions at night, esp. ones different from daytime positions.
 |  | SEMPITERNITY | • sempiternity n. (Philosophy, theology) Existence within time but infinitely into the future, as opposed to eternity… • sempiternity n. (Literary) Eternity; a seemingly everlasting period of time.
 • SEMPITERNITY n. eternity.
 |  | STREPTOMYCIN | • streptomycin n. (Pharmacology) An aminoglycoside and bactericidal antibiotic C21H39N7O12 that is produced by a soil… • STREPTOMYCIN n. an antibiotic produced by the soil bacterium Streptomyces griseus, the first drug to be successful against tuberculosis.
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 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.
 
 See this list for:English Wiktionary: 17 wordsScrabble in French: 1 wordScrabble in Spanish: no wordScrabble in Italian: no wordScrabble in German: no wordScrabble in Romanian: no word
 
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