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List of 15-letter words containing

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There are 9 fifteen-letter words containing 2F, 2I, N, O and U

EFFICACIOUSNESSefficaciousness n. Quality of being efficacious.
EFFICACIOUS n. having the power to produce a desired effect.
FRUCTIFICATIONSfructifications n. Plural of fructification.
FRUCTIFICATION n. the reproductive organs or fruit of a plant.
IMMUNODIFFUSIONimmunodiffusion n. A technique used to detect the reaction between an antigen and an antibody by observing the behavior…
IMMUNODIFFUSION n. any of various analytical techniques that involve antigen and antibody solutions diffusing toward each other in a gel until antibody binds specifically to antigen to form a precipitate.
INEFFICACIOUSLYinefficaciously adv. Without efficacy or effect.
INEFFICACIOUS adv. lacking the power to produce a desired effect.
INFUNDIBULIFORMinfundibuliform adj. Having the shape of a funnel or cone.
INFUNDIBULIFORM adj. shaped like a funnel.
INOFFICIOUSNESSinofficiousness n. The quality of being inofficious.
INOFFICIOUS n. not officious.
INTERDIFFUSIONSinterdiffusions n. Plural of interdiffusion.
INTERDIFFUSION n. the process of diffusing and mixing freely so as to approach a homogeneous mixture.
OFFICIOUSNESSESofficiousnesses n. Plural of officiousness.
OFFICIOUSNESS n. OFFICIOUS, volunteering one's services too eagerly.
UNFOSSILIFEROUSunfossiliferous adj. Not fossiliferous, nonfossiliferous.
UNFOSSILIFEROUS adj. not fossiliferous.

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: 46 words
  • Scrabble in French: 17 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: 27 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 6 words


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