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There are 32 twenty-letter words containing 3M and 2S

adaptive␣immune␣systemammonium␣phosphatidescompartment␣syndromescompensated␣summationcontact␣metamorphismscytoplasmic␣membranesdumb␣as␣a␣sack␣of␣hammershammered␣dulcimeristshistoimmunochemistryimmunohaematologistsimmunohistochemicalsimmunohistochemistryking␣trumpet␣mushroomsKohnstamm's␣phenomenonlampbrush␣chromosomesleast␣common␣multipleslymphangiomyomatosisMay-September␣romancesmesembryanthemaceousminimum␣spanning␣treesmissing␣man␣formationsmolluscum␣contagiosummushroom␣millionairesparasympathomimeticsrandom-access␣memoriesSimmons-Smith␣reactionSommerfeld␣parameterssummer␣penile␣syndromesymmetric␣polynomialsthermodynamic␣systemstrammels␣of␣Archimedesvenothromboembolisms

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See this list for:

  • Scrabble in English: no word
  • French Wiktionary: 48 words
  • Spanish Wiktionary: no word
  • Italian Wiktionary: 2 words
  • German Wiktionary: 85 words
  • Portuguese Wiktionary: no word
  • Dutch Wiktionary: 15 words

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