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List of 13-letter words containing

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There are 13 thirteen-letter words containing I, 2L, N, O and X

EXCEPTIONALLYexceptionally adv. To an unusual, remarkable or exceptional degree.
EXCEPTIONAL adv. by way of an exception.
EXCLAMATIONALexclamational adj. Relating to, or having the form of, an exclamation.
EXCLAMATIONAL adj. of or like an exclamation.
EXPLANATORILYexplanatorily adv. With regard to explanation, or explanatory power.
EXPLANATORY adv. serving to explain, also EXPLANATIVE.
EXPLORATIONALexplorational adj. Of, pertaining to, or by means of exploration.
EXPLORATIONAL adj. relating to exploration.
EXPONENTIALLYexponentially adv. (Mathematics, sciences) In an exponential manner.
exponentially adv. (Proscribed) rapidly, greatly.
EXPONENTIAL adv. of or relating to an exponent.
EXTENSIONALLYextensionally adv. In terms or by means of extension.
EXTENSIONAL adv. of, relating to, or marked by extension.
INFLEXIONALLYinflexionally adv. Dated form of inflectionally.
INFLEXIONAL adv. relating to inflexion, also INFLECTIONAL.
INFLEXIONLESSinflexionless adj. Without inflexion.
INFLEXIONLESS adj. without inflexion, also INFLECTIONLESS.
ISOALLOXAZINEisoalloxazine n. (Organic chemistry) The tricyclic heterocycle that is the basis of the flavins; any derivative of this compound.
ISOALLOXAZINE n. a yellow solid that is the precursor of various flavins, such as riboflavin.
POLYSILOXANESpolysiloxanes n. Plural of polysiloxane.
POLYSILOXANE n. any of a number of polymers which are the basis of silicone chemistry.
SEXDECILLIONSsexdecillions n. Plural of sexdecillion.
SEXDECILLION n. ten to the power of 51.
SEXTILLIONTHSsextillionths n. Plural of sextillionth.
SEXTILLIONTH n. the ordinal of a sextillion, a thousand raised to the seventh power.
TAXONOMICALLYtaxonomically adv. In terms of taxonomy.
TAXONOMICAL adv. relating to taxonomy, the science of classifying living organisms, also TAXONOMIC.

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: 81 words
  • Scrabble in French: 16 words
  • Scrabble in Spanish: 2 words
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: 49 words


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