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There are 7 fifteen-letter words containing 2H, 2I, N, O and Y

EPICHLOROHYDRINepichlorohydrin n. (Chemistry) Any epihalohydrin in which the halogen is chlorine.
EPICHLOROHYDRIN n. a volatile liquid toxic epoxide used esp. in making epoxy resins and rubbers.
HYPOCHONDRIASIShypochondriasis n. (Medicine) A mental disorder characterized by excessive fear of or preoccupation with a serious illness…
HYPOCHONDRIASIS n. morbid concern about one's health esp. when accompanied by delusions of physical disease.
ICHTHYOSAURIANSichthyosaurians n. Plural of ichthyosaurian.
ICHTHYOSAURIAN n. a large fossil marine reptile, also ICHTHYOSAUR, ICHTHYOSAURUS.
LITHONTHRYPTICSlithonthryptics n. Plural of lithonthryptic.
LITHONTHRYPTIC n. a medicine for dissolving kidney stones, also LITHONTRIPTIC, LITHOTRIPTIC.
METHYLTHIONINESMETHYLTHIONINE n. as in methylthionine chloride, a dark green dye used as a stain, antiseptic etc.
PSYCHOHISTORIANpsychohistorian n. One who is involved in the field of psychohistory.
PSYCHOHISTORIAN n. a student of psychohistory.
THIRTYSOMETHINGthirtysomething n. A tricenarian: a person in their thirties, a person aged between 30 and 39 years (inclusive).
thirtysomething adj. Between 30 and 39 years of age.
thirtysomething adj. Between 30 and 39 in number.

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: 51 words
  • Scrabble in French: 4 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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