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List of 12-letter words containing

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There are 20 twelve-letter words containing I, L, 2O, S and X

DORSIFLEXIONdorsiflexion n. (Medicine) Flexion in the dorsal direction.
DORSIFLEXION n. a bending backwards; a bending of the back.
EXFOLIATIONSexfoliations n. Plural of exfoliation.
EXFOLIATION n. the process by which concentric scales, plates, or shells of rock are stripped or spall from the bare surface of a large rock mass.
EXOBIOLOGIESexobiologies n. Plural of exobiology.
EXOBIOLOGY n. the study of extraterrestrial life.
EXOBIOLOGISTexobiologist n. A biologist whose speciality is exobiology.
EXOBIOLOGIST n. a student of exobiology.
EXPLORATIONSexplorations n. Plural of exploration.
EXPLORATION n. the act or an instance of exploring.
EXPOSITIONALexpositional adj. Explained in clear terms, as in writing.
expositional adj. Declared information openly.
EXPOSITIONAL adj. relating to exposition.
EXPOSITORILYexpositorily adv. In an expository fashion.
EXPOSITORY adv. pertaining to, or containing, exposition.
LEXICOLOGIESlexicologies n. Plural of lexicology.
LEXICOLOGY n. the study of words and their meanings.
LEXICOLOGISTlexicologist n. An expert at lexicology.
LEXICOLOGIST n. a practitioner of lexicology.
NONEXPLOSIVEnonexplosive adj. Not explosive; unable to explode.
NONEXPLOSIVE adj. not explosive.
OVEREXPLOITSoverexploits v. Third-person singular simple present indicative form of overexploit.
OVEREXPLOIT v. to exploit to excess.
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.
PRAXEOLOGIESpraxeologies n. Plural of praxeology.
PRAXEOLOGY n. the study of human action and conduct.
SOLIFLUXIONSSOLIFLUXION n. the turbulent movement of saturated soil or surficial debris, also SOLIFLUCTION.
TOXICOLOGIEStoxicologies n. Plural of toxicology.
TOXICOLOGY n. the science which treats of poisons, their effects, antidotes, and recognition.
TOXICOLOGISTtoxicologist n. A scientist or physician who specializes in toxicology.
TOXICOLOGIST n. an expert in toxicology.
TOXOPHILITEStoxophilites n. Plural of toxophilite.
TOXOPHILITE n. one fond of or expert at archery.
XENOGLOSSIASXENOGLOSSIA n. a person's knowledge of a language never studied, also XENOGLOSSY.
XENOGLOSSIESxenoglossies n. Plural of xenoglossy.
XENOGLOSSY n. a person's knowledge of a language never studied, also XENOGLOSSIA.
XYLOPHONISTSxylophonists n. Plural of xylophonist.
XYLOPHONIST n. one who plays the xylophone.

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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