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List of 12-letter words containing

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There are 20 twelve-letter words containing E, N, 2O, P and X

COMPLEXATIONcomplexation n. (Chemistry) The formation of a complex.
COMPLEXATION n. a complex.
COMPLEXIONALcomplexional adj. (Obsolete) Pertaining to one’s physical composition; constitutional.
complexional adj. (Obsolete) Pertaining to one’s mental disposition; temperamental.
complexional adj. Pertaining to the complexion of the skin.
COMPLEXIONEDcomplexioned adj. (In combination) Having a specified type of complexion.
COMPLEXIONED adj. having a particular complexion.
ENDOPEROXIDEendoperoxide n. (Chemistry, biochemistry) Any heterocycle containing a peroxide -O-O- residue in the ring; found especially…
ENDOPEROXIDE n. any of various biosynthetic intermediates in the formation of prostaglandins.
EPOXIDATIONSepoxidations n. Plural of epoxidation.
EPOXIDATION n. a conversion of a usually unsaturated compound into an epoxide.
EXPLOITATIONexploitation n. The act of utilizing something; industry.
exploitation n. The improper use of something for selfish purposes.
exploitation n. The act or result of forcibly depriving someone of something to which they have a natural right.
EXPLORATIONSexplorations n. Plural of exploration.
EXPLORATION n. the act or an instance of exploring.
EXPORTATIONSexportations n. Plural of exportation.
EXPORTATION n. the act of exporting.
EXPOSITIONALexpositional adj. Explained in clear terms, as in writing.
expositional adj. Declared information openly.
EXPOSITIONAL adj. relating to exposition.
EXPROBRATIONexprobration n. (Obsolete) Reproachful accusation; upbraiding.
EXPROBRATION n. the act of exprobrating, upbraiding.
EXPROMISSIONexpromission n. (Law) The intervention of a new debtor, substituted for the former one, who is consequently discharged…
EXPROMISSION n. relieving another person's debt by taking it upon oneself.
GROUNDPROXESGROUNDPROX n. an altitude warning system in aircraft.
NONEXPLOSIVEnonexplosive adj. Not explosive; unable to explode.
NONEXPLOSIVE adj. not explosive.
OROPHARYNXESoropharynxes n. Plural of oropharynx.
OROPHARYNX n. the part of the pharynx between the soft palate and the epiglottis.
OVEREXPOSINGoverexposing v. Present participle of overexpose.
OVEREXPOSE v. to expose excessively.
PEROXIDATIONperoxidation n. (Chemistry) Any oxidation reaction, especially of an oxide, that produces a peroxide.
peroxidation n. (Organic chemistry) The reaction of a double bond with a peroxide.
PEROXIDATION n. the creation of a peroxide.
PNEUMOTHORAXpneumothorax n. (Medicine) Presence of air inside the pleural cavity, usually caused by injury either to the lung or the chest wall.
PNEUMOTHORAX n. accumulation of air or gas in the pleural cavity.
POLYSILOXANEpolysiloxane n. (Chemistry) Any of many polymers having a siloxane repeat unit.
POLYSILOXANE n. any of a number of polymers which are the basis of silicone chemistry.
PRAXINOSCOPEpraxinoscope n. (Historical) An animation device invented in 1877 and used in early image projection. It consisted of…
PRAXINOSCOPE n. an instrument with mirrors in which a series of moving drawings appear as a continuously moving picture; an early form of cinematograph.
PROPOXYPHENEpropoxyphene n. Dextropropoxyphene.
PROPOXYPHENE n. a narcotic analgesic structurally related to methadone but less addicting.

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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