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List of 15-letter words containing

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There are 10 fifteen-letter words containing I, 2L, O, R, 2S and Y

ASTROPHYSICALLYastrophysically adv. With regard to astrophysics.
ASTROPHYSICAL adv. relating to astrophysics.
CONGRESSIONALLYcongressionally adv. By a congress; often specifically by the United States Congress.
CONGRESSIONAL adv. relating to congress.
CRYSTALLISATIONcrystallisation n. (Britain) Alternative spelling of crystallization.
CRYSTALLISATION n. the process of crystallising, also CRYSTALISATION, CRYSTALIZATION, CRYSTALLIZATION.
ELECTROANALYSISelectroanalysis n. (Physics, chemistry) Any of several electrochemical forms of analysis.
ELECTROANALYSIS n. electrochemical analysis.
ELECTRODIALYSESelectrodialyses n. Plural of electrodialysis.
ELECTRODIALYSIS n. the use of an electric field to speed up membranal diffusion.
ELECTRODIALYSISelectrodialysis n. A form of dialysis in which the rate is increased by the presence of an electric potential across the…
ELECTRODIALYSIS n. the use of an electric field to speed up membranal diffusion.
PERISSOSYLLABICPERISSOSYLLABIC adj. having an additional syllable.
PROGRESSIONALLYPROGRESSIONAL adv. relating to progression.
SPLENDIFEROUSLYsplendiferously adv. In a splendiferous manner.
SPLENDIFEROUS adv. splendid.
SYLLABOGRAPHIESSYLLABOGRAPHY n. use of a writing system consisting of characters for syllables rather than for individual sounds or whole words.

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: 70 words
  • Scrabble in French: 7 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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