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There are 15 twelve-letter words containing A, C, I, O, R and 3T

BACTERIOSTATbacteriostat n. A biological or chemical agent that causes bacteriostasis.
BACTERIOSTAT n. an agent that causes bacteriostasis.
CONTRASTIESTCONTRASTY adj. of eg a photograph, showing strong contrasts.
CONTRITURATECONTRITURATE v. to pulverize.
FRACTOSTRATIFRACTOSTRATUS n. a type of cloud.
HETEROTACTICheterotactic adj. Of or pertaining to heterotaxis.
heterotactic adj. (Chemistry, of a polymer) Having substituents arranged in a random configuration in each repeat unit.
HETEROTACTIC adj. abnormally arranged.
RETINOTECTALretinotectal adj. (Anatomy) Of or pertaining to the retina and the optic tectum.
RETINOTECTAL adj. of, relating to, or being the nerve fibers connecting the retina and the tectum of the midbrain.
RETRACTATIONretractation n. Retraction (of something previously said).
RETRACTATION n. revoking, recantation.
SCATTERATIONscatteration n. A scattered arrangement.
SCATTERATION n. the act of scattering.
STEREOTACTICstereotactic adj. Stereotaxic.
STEREOTACTIC adj. involving or used in a surgical technique for directing the tip of a delicate instrument or beam of radiation using coordinates provided by medical imaging, also STEREOTACTICAL.
STRATOCRATICstratocratic adj. Relating to stratocracy.
STRATOCRATIC adj. relating to a stratocracy, government by the military.
TESTIFICATORtestificator n. (Obsolete) A testifier.
TESTIFICATOR n. one who testifies.
THERMOSTATICthermostatic adj. Having or maintaining a consistent temperature.
thermostatic adj. (Physiology) Relating to thermostasis.
THERMOSTATIC adj. relating to thermal equilibrium.
THERMOTACTICthermotactic adj. Relating to thermotaxis.
THERMOTACTIC adj. of or showing thermotaxis, also THERMOTAXIC.
TRACTORATIONtractoration n. (Dated, medicine) Perkinism.
TRACTORATION n. (historical) the use of metal bars to give relief to diseased parts of the body.
TROPHOTACTICTROPHOTACTIC adj. relating to trophotaxis, chemotaxis and chemotropism where the stimulating substance is food.

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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See this list for:

  • English Wiktionary: 71 words
  • Scrabble in French: 41 words
  • Scrabble in Spanish: 4 words
  • Scrabble in Italian: 181 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 43 words


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