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

ACTINOMETRICactinometric adj. Of or pertaining to actinometry.
actinometric adj. Measured using an actinometer.
ACTINOMETRIC adj. relating to actinometry, measurement of heating power of the sun's rays, also ACTINOMETRICAL.
ANTICATHOLICanticatholic adj. Opposed to Catholicism.
anticatholic n. A person opposed to Catholicism.
ANTICATHOLIC adj. opposed to the Catholic church.
ARISTOCRATICaristocratic adj. Of, pertaining to, or favouring, an aristocracy.
aristocratic adj. Similar to the aristocracy; characteristic of, the aristocracy.
ARISTOCRATIC adj. belonging to an aristocracy, also ARISTOCRATICAL.
AUTODIDACTICautodidactic adj. Of, relating to, or being an autodidact; self-taught; self-educated.
AUTODIDACTIC adj. self-taught.
BIOCATALYTICbiocatalytic adj. Relating to, or employing biocatalysis.
BIOCATALYTIC adj. of or like a biocatalyst.
CAPACITATIONcapacitation n. Enablement; giving the capacity to do something. (Can we add an example for this sense?)
capacitation n. (Zoology) The process of altering sperm to allow them to fertilize eggs.
CAPACITATION n. the change undergone by sperm in the female reproductive tract that enables them to penetrate and fertilize an egg.
CATADIOPTRICcatadioptric adj. (Optics) Of or pertaining to optical systems that employ both refractive (dioptric) and reflective (catoptric)…
CATADIOPTRIC adj. relating to or employing both reflection and refraction, as in the construction of some long-focal-length photographic lenses, also CATADIOPTRICAL.
CHROMATICITYchromaticity n. An objective specification of the quality of a colour, regardless of its luminance.
CHROMATICITY n. the quality of color characterized by its dominant or complementary wavelength and purity taken together.
CITIFICATIONcitification n. The process of making something urban.
CITIFICATION n. the act of citifying, also CITYFICATION.
CITYFICATIONcityfication n. (Rare) Alternative form of citification.
CITYFICATION n. the act of cityfying, also CITIFICATION.
COACTIVITIEScoactivities n. Plural of coactivity.
COACTIVITY n. unity of action.
COCCIDIOSTATcoccidiostat n. Any antiprotozoal agent that acts upon Coccidia parasites.
COCCIDIOSTAT n. an agent which builds up a resistance by the host to coccidia by retarding the latter's life-cycle, etc.
COMPATRIOTICcompatriotic adj. Of or relating to compatriots.
COMPATRIOTIC adj. of or like a compatriot.
CORTICATIONSCORTICATION n. the state of being corticate, having a bark.
MERITOCRATICmeritocratic adj. Pertaining to a meritocracy.
MERITOCRATIC adj. relating to meritocracy.
PHOTOACTINICphotoactinic adj. (Obsolete, physics, chemistry) photochemical.
PHOTOACTINIC adj. emitting actinic radiation.
SYNDIOTACTICsyndiotactic adj. (Chemistry, of a polymer) Having substituents arranged in alternating (rather than random) configuration…
SYNDIOTACTIC adj. of a stereospecific polymer, having alternating stereochemical configurations of the groups on successive carbon atoms in the chain.
THIGMOTACTICthigmotactic adj. Relating to thigmotaxis.
THIGMOTACTIC adj. showing thigmotaxis.
TIMOCRATICALtimocratical adj. Synonym of timocratic.
TIMOCRATICAL adj. relating to timocracy, also TIMOCRATIC.
TRICHROMATICtrichromatic adj. Involving three colours.
trichromatic adj. Able to perceive three primary colours.
TRICHROMATIC adj. pertaining to or in three colors; having normal color vision, also TRICHROME.

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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See this list for:

  • English Wiktionary: 101 words
  • Scrabble in French: 14 words
  • Scrabble in Spanish: 26 words
  • Scrabble in Italian: 183 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 108 words


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