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List of 13-letter words containing

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There are 10 thirteen-letter words containing A, C, S, X and Y

CHALCEDONYXESCHALCEDONYX n. an agate of alternating white opaque and greyish transparent chalcedony.
COCARBOXYLASEcocarboxylase n. A compound, related to vitamin B, that can be prepared from aneurine.
COCARBOXYLASE n. a coenzyme that is a pyrophosphate of thiamine and is important in metabolic reactions.
DECARBOXYLASEdecarboxylase n. (Biochemistry) Any enzyme that catalyzes the hydrolysis of a carboxyl group, effectively removing carbon…
DECARBOXYLASE n. any of a group of enzymes that accelerate decarboxylation esp. of amino acids.
EXTRINSICALLYextrinsically adv. In an extrinsic manner.
EXTRINSICAL adv. outward, external, as opposed to intrinsic, also EXTRINSIC.
HEXADACTYLOUShexadactylous adj. (Zoology) Having six fingers or toes.
HEXADACTYLOUS adj. having six fingers, also HEXADACTYLIC.
OXYACETYLENESOXYACETYLENE n. a mixture of oxygen and acetylene, esp. for cutting or welding.
PHYCOXANTHINSPHYCOXANTHIN n. a yellow pigment found in diatoms, brown seaweeds etc.
SCEUOPHYLAXESSCEUOPHYLAX n. a sacristan.
TACHYPHYLAXEStachyphylaxes n. Plural of tachyphylaxis.
TACHYPHYLAXIS n. very rapid development of tolerance or immunity to the effects of a drug.
TACHYPHYLAXIStachyphylaxis n. (Medicine) A rapidly decreasing response to a drug following administration of the initial doses.
TACHYPHYLAXIS n. very rapid development of tolerance or immunity to the effects of a drug.

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: 81 words
  • Scrabble in French: 9 words
  • Scrabble in Spanish: 1 word
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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