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List of 15-letter words containing

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There are 20 fifteen-letter words containing 2F, I, N and U

DEXFENFLURAMINEdexfenfluramine n. A serotonergic anorectic drug used for weight loss in the 1990s, later withdrawn because of cardiovascular…
DIFFUSIVENESSESdiffusivenesses n. Plural of diffusiveness.
DIFFUSIVENESS n. the state of being diffusive.
EFFICACIOUSNESSefficaciousness n. Quality of being efficacious.
EFFICACIOUS n. having the power to produce a desired effect.
FLORIFEROUSNESSfloriferousness n. Quality of being floriferous, or bearing many flowers.
FLORIFEROUS n. bearing flowers.
FRIGHTFULNESSESfrightfulnesses n. Plural of frightfulness.
FRIGHTFULNESS n. the state of being frightful.
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.
INEFFECTUALNESSineffectualness n. Inefficacy.
INEFFECTUALNESS n. the state of being ineffectual.
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.
INSUFFICIENCIESinsufficiencies n. Plural of insufficiency.
INSUFFICIENCY n. the state of being insufficient, also INSUFFICIENCE.
INTERDIFFUSIONSinterdiffusions n. Plural of interdiffusion.
INTERDIFFUSION n. the process of diffusing and mixing freely so as to approach a homogeneous mixture.
NONFULFILLMENTSnonfulfillments n. Plural of nonfulfillment.
NONFULFILLMENT n. something that is not fulfillment, also NONFULFILMENT.
OFFICIOUSNESSESofficiousnesses n. Plural of officiousness.
OFFICIOUSNESS n. OFFICIOUS, volunteering one's services too eagerly.
OVERFULFILLMENTSorry, definition not available.
SUFFICINGNESSESSUFFICINGNESS n. the state of being sufficing.
SUPEREFFICIENCYsuperefficiency n. The quality of being superefficient.
SUPEREFFICIENCY n. the state of being superefficient.
UNDERFULFILLINGUNDERFULFIL v. to fail to fulfil completely, also UNDERFULFILL.
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 1Word.ws and WikWik.org.

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