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 There are 6 thirteen-letter words containing H, L, P, X and Y| HYPERPYREXIAL | • hyperpyrexial adj. Exhibiting or relating to hyperpyrexia. • HYPERPYREXIAL adj. showing hyperpyrexia, an extremely high fever.
 |  | SCEUOPHYLAXES | • SCEUOPHYLAX n. a sacristan. |  | TACHYPHYLAXES | • tachyphylaxes n. Plural of tachyphylaxis. • TACHYPHYLAXIS n. very rapid development of tolerance or immunity to the effects of a drug.
 |  | TACHYPHYLAXIS | • tachyphylaxis 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.
 |  | XIPHOPHYLLOUS | • xiphophyllous adj. (Botany) Having sword-shaped leaves. • XIPHOPHYLLOUS adj. having sword-shaped leaves.
 |  | XYLOGRAPHICAL | • xylographical adj. Xylographic. • XYLOGRAPHICAL adj. relating to xylography, the art of making engravings on wood, also XYLOGRAPHIC.
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 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.
 
 See this list for:English Wiktionary: 76 wordsScrabble in French: 9 wordsScrabble in Spanish: no wordScrabble in Italian: no wordScrabble in German: no wordScrabble in Romanian: no word
 
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