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List of 12-letter words containing

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There are 20 twelve-letter words containing 2A, C, 2O and 2T

ANTONOMASTICantonomastic adj. (Rhetoric) Relating to, or characterized by, antonomasia.
ANTONOMASTIC adj. relating to antonomasia, the substitution of a title or epithet for a proper name.
ASTACOLOGISTastacologist n. One who practices astacology.
ASTACOLOGIST n. a specialist in astacology, the breeding of crayfish.
ASTROCYTOMASastrocytomas n. Plural of astrocytoma.
ASTROCYTOMA n. a tumour of the central nervous system.
AUTOCHTHONALautochthonal adj. Existing where it was formed or born; native, aboriginal, indigenous.
AUTOCHTHONAL adj. indigenous, aboriginal, also AUTOCHTHONIC, AUTOCHTHONOUS.
AZOTOBACTERSAZOTOBACTER n. a nitrogen-fixing bacteria.
BATTOLOGICALbattological adj. Exhibiting or relating to battology.
BATTOLOGICAL adj. pertaining to battology, unnecessarily repetitive writing or speaking.
COADAPTATIONcoadaptation n. Alternative spelling of co-adaptation.
co-adaptation n. A mutual adaptation of species, organs or genes.
COADAPTATION n. the state of being mutually adapted.
COARCTATIONScoarctations n. Plural of coarctation.
COARCTATION n. the action of compressing tightly; the state of being tightly compressed.
COHABITATIONcohabitation n. An emotional and physical intimate relationship which includes a common living place and which exists…
cohabitation n. The act of living together.
cohabitation n. A place where two or more individuals reside together.
CONSTATATIONconstatation n. The process of verification.
constatation n. An assertion; a proposition assumed for the sake of argument, an axiom.
CONSTATATION n. a statement, assertion.
CONTAMINATORcontaminator n. A person who contaminates.
contaminator n. A thing that contaminates; a contaminant.
CONTAMINATOR n. one who contaminates.
CONTRAOCTAVEcontraoctave n. Alternative form of contra-octave.
contra-octave n. (Music) The octave directly below the great octave.
CONTRAOCTAVE n. the musical octave that begins on the third C below middle C.
FRACTIONATORfractionator n. (Chemistry) A piece of chemical engineering or laboratory apparatus that is used to separate the components…
FRACTIONATOR n. a plant for carrying out fractional distillation.
NONAUTOMATICnonautomatic adj. Not automatic.
non-automatic adj. Alternative form of nonautomatic.
NONAUTOMATIC adj. not automatic.
NONCOMBATANTnoncombatant n. Alternative form of non-combatant.
non-combatant n. A non-fighting member of the armed forces.
non-combatant n. A civilian in time of conflict.
OXALOACETATEoxaloacetate n. (Organic chemistry) any salt or ester of oxaloacetic acid.
OXALOACETATE n. a salt or ester of oxaloacetic acid, also OXALACETATE.
RATIOCINATORratiocinator n. One who ratiocinates; a reasoner.
RATIOCINATOR n. one who ratiocinates, reasons or argues logically.
TAUTOLOGICALtautological adj. Of, relating to, or using tautology.
tautological adj. Using repetition or excessive wordiness; pleonastic or circumlocutionary.
TAUTOLOGICAL adj. relating to tautology, also TAUTOLOGIC.
TRACHOMATOUStrachomatous adj. Relating to a trachoma.
TRACHOMATOUS adj. relating to trachoma.
TRACTORATIONtractoration n. (Dated, medicine) Perkinism.
TRACTORATION n. (historical) the use of metal bars to give relief to diseased parts of the body.

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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