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List of 13-letter words containing

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There are 17 thirteen-letter words containing A, E, 2F, 2I and N

AFFRIGHTENINGaffrightening v. Present participle of affrighten.
AFFRIGHTEN v. to frighten, also AFFRIGHT.
DIEFFENBACHIAdieffenbachia n. Any of several plants, of the genus Dieffenbachia, cultivated as houseplants.
Dieffenbachia prop.n. A taxonomic genus within the family Araceae – the mother-in-law’s tongue, dumb cane and similar plants.
DIEFFENBACHIA n. any plant of the tropical American araceous genus Dieffenbachia, including the dumbcane.
DIFFARREATIONdiffarreation n. (Historical) A form of divorce, among the Ancient Romans, in which a cake was used.
DIFFARREATION n. (historical) a Roman form of divorce.
DIFFERENTIALSdifferentials n. Plural of differential.
DIFFERENTIAL n. in maths, the product of the derivative of a function of one variable by the increment of the independent variable.
DIFFERENTIATEdifferentiate v. (Transitive).
differentiate v. (Intransitive).
differentiate v. (Transitive, intransitive, often in the passive, biology) To (cause to) go through a process of development…
DISAFFECTIONSdisaffections n. Plural of disaffection.
DISAFFECTION n. the state of being disaffected.
DISAFFIRMANCEdisaffirmance n. (Law) The act of disaffirming; denial.
disaffirmance n. (Law) Overthrow or annulment by the decision of a superior tribunal.
DISAFFIRMANCE n. the act of disaffirming.
EFFIGURATIONSEFFIGURATION n. an elaborate, detailed description of an object or an event.
FEBRIFACIENTSfebrifacients n. Plural of febrifacient.
FEBRIFACIENT n. something causing fever.
FORAMINIFERALforaminiferal adj. Of, pertaining to, or resembling the foraminifers; foraminiferous.
FORAMINIFERAL adj. of or like a foraminifer.
FORAMINIFERANforaminiferan n. (Zoology, paleontology) An organism of the phylum Foraminifera; a foraminifer.
FORAMINIFERAN n. a foraminifer.
INEFFICACIOUSinefficacious adj. Incapable of having the intended consequence.
inefficacious adj. Not effective.
INEFFICACIOUS adj. lacking the power to produce a desired effect.
INFRASPECIFICinfraspecific adj. (Taxonomy) pertaining to a taxon at a rank lower than species, such as subspecies (in certain kingdoms…
INFRASPECIFIC adj. of taxonomic divisions of a lower rank than species.
INTERTRAFFICSINTERTRAFFIC n. (obsolete) traffic between two or more people or places.
NONAFFILIATEDnonaffiliated adj. Unaffiliated.
non-affiliated adj. Unaffiliated.
NONAFFILIATED adj. not affiliated.
REAFFIRMATIONreaffirmation n. An act of reaffirming; a second or subsequent affirmation.
REAFFIRMATION n. the act of reaffirming.
UNFALSIFIABLEunfalsifiable adj. (Of a statement or argument) Not able to be proven false, but not necessarily true.
unfalsifiable n. A statement or argument that cannot be proven false, but is not necessarily true.
UNFALSIFIABLE adj. not capable of being proved false.

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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