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There are 9 twelve-letter words containing OTACT

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.
PHONOTACTICSphonotactics n. (Linguistics, phonology) A branch of phonology that deals with the restrictions a language applies to…
PHONOTACTICS n. the area of phonology concerned with the analysis and description of the permitted sound sequences of a language.
PHYLLOTACTICphyllotactic adj. Of or pertaining to phyllotaxy.
PHYLLOTACTIC adj. of or relating to phyllotaxis, the arrangement of leaves on the stem, also PHYLLOTACTICAL.
PROTACTINIUMprotactinium n. A chemical element (symbol Pa) with atomic number 91: a dense, silvery-gray actinide metal.
PROTACTINIUM n. a radioactive metallic chemical element, a member of the actinide series which occurs as a decay product in uranium ores.
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.
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.
THERMOTACTICthermotactic adj. Relating to thermotaxis.
THERMOTACTIC adj. of or showing thermotaxis, also THERMOTAXIC.
THIGMOTACTICthigmotactic adj. Relating to thigmotaxis.
THIGMOTACTIC adj. showing thigmotaxis.
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 WikWik.org and 1Word.ws.

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See this list for:

  • English Wiktionary: 34 words
  • Scrabble in French: 2 words
  • Scrabble in Spanish: 3 words
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: 7 words


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