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List of 13-letter words containing

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There are 9 thirteen-letter words containing A, E, H, L, T and 2Y

BUTYRALDEHYDEbutyraldehyde n. (Organic chemistry) The aliphatic aldehyde CH3-CH2-CH2-CHO derived from butane.
BUTYRALDEHYDE n. either of two aldehydes used esp. in making synthetic resins.
CYANOETHYLATEcyanoethylate v. (Chemistry, transitive) To subject to cyanoethylation.
CYANOETHYLATE v. to introduce a cyano-ethyl group into.
EPIPHYTICALLYepiphytically adv. In an epiphytic manner; in the manner of an epiphyte.
EPIPHYTICAL adv. of or like an epiphyte, also EPIPHYTAL, EPIPHYTIC.
HYPERSALINITYhypersalinity n. Abnormally high salinity.
HYPERSALINITY n. excessive salinity.
POLYCYTHAEMIApolycythaemia n. Alternative spelling of polycythemia.
POLYCYTHAEMIA n. a condition marked by an abnormal increase in the number of circulating red blood cells, also POLYCYTHEMIA.
POLYCYTHEMIASpolycythemias n. Plural of polycythemia.
POLYCYTHEMIA n. a condition marked by an abnormal increase in the number of circulating red blood cells, also POLYCYTHAEMIA.
PTERYLOGRAPHYpterylography n. (Zoology) The study or description of the arrangement of feathers, or of the pterylae, of birds.
PTERYLOGRAPHY n. a description of pterylae.
SYNTHETICALLYsynthetically adv. Using synthetic methods.
SYNTHETICAL adv. artificially produced but of similar nature to, not a mere substitute for, the natural product, also SYNTHETIC.
TACHYPHYLAXEStachyphylaxes n. Plural of tachyphylaxis.
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 WikWik.org and 1Word.ws.

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See this list for:

  • English Wiktionary: 79 words
  • Scrabble in French: 6 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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