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List of 13-letter words containing

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There are 13 thirteen-letter words containing E, 2H, I, N, S, T and Y

HYPERSTHENIAShypersthenias n. Plural of hypersthenia.
HYPERSTHENIA n. a morbid condition marked by excessive excitement of all the vital phenomena.
HYPERSTHENITEhypersthenite n. (Mineralogy) A more or less coarsely crystalline igneous rock, allied to gabbro; an aggregate of labradorite…
HYPERSTHENITE n. a pyroxenite composed almost wholly of hypersthene.
HYPHENISATIONHYPHENISATION n. the process of hyphenising, also HYPHENIZATION.
HYPOTHESISINGhypothesising v. Present participle of hypothesise.
HYPOTHESISE v. to form a hypothesis, also HYPOTHESIZE, HYPOTHETISE, HYPOTHETIZE.
HYPOTHESIZINGhypothesizing v. Present participle of hypothesize.
HYPOTHESIZE v. to make a hypothesis, also HYPOTHESISE, HYPOTHETISE, HYPOTHETIZE.
HYPOTHETISINGhypothetising v. Present participle of hypothetise.
HYPOTHETISE v. to form a hypothesis, also HYPOTHESISE, HYPOTHESIZE, HYPOTHETIZE.
HYPOXANTHINEShypoxanthines n. Plural of hypoxanthine.
HYPOXANTHINE n. a purine base found in plant and animal tissues that yields xanthine on oxidation.
ICHTHYORNISESICHTHYORNIS n. a toothed fossil bird of America.
OSTEICHTHYANSosteichthyans n. Plural of osteichthyan.
OSTEICHTHYAN n. a bony fish.
PSYCHASTHENIApsychasthenia n. (Dated) A psychological disorder characterized by phobias, obsessions, compulsions, or excessive anxiety.
PSYCHASTHENIA n. an incapacity to resolve doubts/uncertainties or to resist obsessions/compulsions that one knows are irrational.
PSYCHASTHENICpsychasthenic adj. Affected with, or relating to, psychasthenia.
psychasthenic n. An individual who has psychasthenia.
PSYCHASTHENIC adj. relating to psychasthenia.
THEOPHYLLINEStheophyllines n. Plural of theophylline.
THEOPHYLLINE n. an isomer of theobromine found in tea, used in medicine.
UNTHRIFTYHEDSUNTHRIFTYHED n. (Spenser) unthriftiness, also UNTHRIFTYHEAD.

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: 45 words
  • Scrabble in French: 7 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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