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List of 13-letter words containing

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There are 20 thirteen-letter words containing I, 2M, 2O, S and Y

COMMISSIONARYcommissionary adj. Of, relating to, or conferring a commission.
commissionary adj. Conferred by a commission or warrant.
commissionary n. A commission, an administrative board.
GYNOMONOECISMGYNOMONOECISM n. the state of being gynomonoecious.
HYLOMORPHISMShylomorphisms n. Plural of hylomorphism.
HYLOMORPHISM n. the belief that matter is the cause of the universe.
LYMPHOMATOSISlymphomatosis n. Multiple lymphoma; the occurrence of deposits of lymphadenoid tissue generally, throughout the body.
LYMPHOMATOSIS n. the presence of multiple lymphomas in the body.
MASTOIDECTOMYmastoidectomy n. (Surgery) The surgical procedure to remove part or all of the mastoid process.
MASTOIDECTOMY n. an operation to remove mastoid bone.
MONOPHYSITISMmonophysitism n. (Christianity) A Christological doctrine, generally considered heterodox or heretical, holding that…
monophysitism n. (Christianity, sometimes derogatory) The beliefs and practices of the Oriental Orthodox Church.
MONOPHYSITISM n. belief that Christ was primarily divine but in human form.
MONOSYLLABISMmonosyllabism n. The state of consisting of monosyllables, or having a monosyllabic form.
monosyllabism n. Frequent occurrence of monosyllables.
MONOSYLLABISM n. the state of being monosyllabic, also MONOSYLLABICITY.
MONOSYMMETRICmonosymmetric adj. (Crystallography) monoclinic.
MONOSYMMETRIC adj. having only one plane of symmetry, also MONOSYMMETRICAL.
MYCOPLASMOSISmycoplasmosis n. Infection by Mycoplasma bacteria.
MYCOPLASMOSIS n. infection by Mycoplasma.
MYRINGOTOMIESmyringotomies n. Plural of myringotomy.
MYRINGOTOMY n. surgical removal of the myringa, the eardrum.
MYRMECOLOGIESMYRMECOLOGY n. the scientific study of ants.
MYRMECOLOGISTmyrmecologist n. One who studies ants.
MYRMECOLOGIST n. one who studies ants.
NUMISMATOLOGYnumismatology n. Numismatics.
NUMISMATOLOGY n. the study or collection of coins and medals.
POLYDAEMONISMpolydaemonism n. Alternative form of polydemonism.
POLYDAEMONISM n. the belief in and worship of numerous supernatural powers, also POLYDEMONISM.
POLYDEMONISMSPOLYDEMONISM n. the belief in and worship of numerous supernatural powers, also POLYDAEMONISM.
POLYMORPHISMSpolymorphisms n. Plural of polymorphism.
POLYMORPHISM n. the circumstance in which two minerals with different crystalline structures have identical chemical compositions, e.g. diamond and graphite.
POLYNOMIALISMpolynomialism n. The use of many names or terms.
POLYNOMIALISM n. the state of being polynomial.
SIGMOIDECTOMYsigmoidectomy n. (Surgery) A colectomy in which the sigmoid colon is removed.
SIGMOIDECTOMY n. removal of the sigmoid colon.
SYMPHYSIOTOMYsymphysiotomy n. A surgical procedure in which the cartilage of the pubic symphysis is divided to widen the pelvis, allowing…
SYMPHYSIOTOMY n. the operation of cutting through the pubic symphysis, also SYMPHYSEOTOMY.
ZYGOMORPHISMSZYGOMORPHISM n. the state of being zygomorphic, bilaterally symmetrical.

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: 64 words
  • Scrabble in French: 6 words
  • Scrabble in Spanish: 1 word
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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