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There are 12 thirteen-letter words containing E, M, O, 2P, 2R and S

IMPERATORSHIPIMPERATORSHIP n. the office of imperator.
IMPROPRIETIESimproprieties n. Plural of impropriety.
IMPROPRIETY n. an improper or indecorous act or remark.
MORPHOTROPIESMORPHOTROPY n. the effect on crystalline form of the addition or substitution of an element or radical.
PARAMORPHINESPARAMORPHINE n. a poisonous white crystalline alkaloid, extracted from opium and used in medicine, aka thebaine.
PERIMORPHISMSPERIMORPHISM n. the state of being a perimorph.
PTERIDOSPERMSpteridosperms n. Plural of pteridosperm.
PTERIDOSPERM n. an extinct group of seed plants which bore fernlike leaves.
PYROMORPHITESpyromorphites n. Plural of pyromorphite.
PYROMORPHITE n. a green, brown, or yellow lead ore.
SPERMATOPHOREspermatophore n. (Biology) A spermospore.
spermatophore n. (Zoology) A capsule or pocket enclosing a number of spermatozoa, found in many annelids, brachiopods…
SPERMATOPHORE n. a case enclosing the spermatozoa of certain crustaceans, molluscs and amphibians.
SUPERCOMPUTERsupercomputer n. (Computing) Any computer that has a far greater processing power than others of its generation; typically…
SUPERCOMPUTER n. a large very fast mainframe used esp. for scientific computations.
SUPERPOLYMERSsuperpolymers n. Plural of superpolymer.
SUPERPOLYMER n. a superior polymer.
SUPRATEMPORALsupratemporal adj. (Anatomy) Above the temporal lobe.
supratemporal adj. (Philosophy) That transcends time.
supratemporal n. (Anatomy) A supratemporal bone.
TELEPROMPTERSteleprompters n. Plural of teleprompter.

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: 67 words
  • Scrabble in French: 12 words
  • Scrabble in Spanish: 70 words
  • Scrabble in Italian: 76 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 28 words


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