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List of 13-letter words containing

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There are 10 thirteen-letter words containing I, M, 2O, 2R, S and Y

HYDROFORMINGSHYDROFORMING n. the catalytic reforming of petroleum to increase the proportion of aromatic and branched-chain hydrocarbons.
HYDROTROPISMShydrotropisms n. Plural of hydrotropism.
HYDROTROPISM n. growth in the direction of water.
HYSTRICOMORPHhystricomorph n. Any Old World porcupine of the family Hystricidae.
HYSTRICOMORPH n. any rodent of a suborder which includes porcupines, cavies, agoutis, and chinchillas.
IMPROVISATORYimprovisatory adj. Of, pertaining to, or in the nature of improvisation.
IMPROVISATORY adj. of or like an improvisator.
MARTYROLOGIESmartyrologies n. Plural of martyrology.
MARTYROLOGY n. the study of martyrs.
MARTYROLOGISTmartyrologist n. One who studies martyrology.
MARTYROLOGIST n. a writer of or a specialist in martyrology.
MERITORIOUSLYmeritoriously adv. In a meritorious manner.
MERITORIOUS adv. deserving of honor or esteem.
MICROPOROSITYmicroporosity n. The state of being microporous.
MICROPOROSITY n. the property of micropores, very small pores.
PITYROSPORUMSPITYROSPORUM n. a yeastlike fungus which can cause pityriasis.
PYROMORPHITESpyromorphites n. Plural of pyromorphite.
PYROMORPHITE n. a green, brown, or yellow lead ore.

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 1Word.ws and WikWik.org.

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See this list for:

  • English Wiktionary: 43 words
  • Scrabble in French: 1 word
  • Scrabble in Spanish: 2 words
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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