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There are 17 fifteen-letter words containing A, H, I, L, 2N and 2O

CYANOETHYLATIONcyanoethylation n. (Organic chemistry) Any reaction, or treatment, with acrylonitrile, especially such treatment of cotton…
CYANOETHYLATION n. the act of introducing a cyano-ethyl group into a compound.
DECHLORINATIONSdechlorinations n. Plural of dechlorination.
DECHLORINATION n. the act of dechlorinating.
HYPOVENTILATIONhypoventilation n. (Medicine) Respiratory depression, occurring when ventilation is inadequate to perform the necessary…
HYPOVENTILATION n. abnormally decreased speed and depth of breathing.
LABYRINTHODONTSlabyrinthodonts n. Plural of labyrinthodont.
LABYRINTHODONT n. an extinct amphibian, so called from a mazy pattern on a section of its teeth.
NONBIOGRAPHICALnonbiographical adj. Not biographical.
NONBIOGRAPHICAL adj. not biographical.
NONHISTORICALLYnonhistorically adv. In a nonhistorical manner.
NONHOSPITALISEDnonhospitalised adj. Alternative spelling of nonhospitalized.
NONHOSPITALISED adj. not hospitalised, also NONHOSPITALIZED.
NONHOSPITALIZEDnonhospitalized adj. Not hospitalized.
NONHOSPITALIZED adj. not hospitalized, also NONHOSPITALISED.
NONMETAPHORICALnonmetaphorical adj. Not metaphorical.
NONMETAPHORICAL adj. not metaphorical.
ORGANOCHLORINESorganochlorines n. Plural of organochlorine.
ORGANOCHLORINE n. a compound of chlorine and an organic radical.
ORNITHODELPHIANORNITHODELPHIAN adj. of or like the Ornithodelphia, monotremes, also ORNITHODELPHIC, ORNITHODELPHOUS.
ORTHOGONALISINGorthogonalising v. Present participle of orthogonalise.
ORTHOGONALISE v. to make orthogonal, also ORTHOGONALIZE.
ORTHOGONALIZINGorthogonalizing v. Present participle of orthogonalize.
ORTHOGONALIZE v. to make orthogonal, also ORTHOGONALISE.
PHYTOPLANKTONICphytoplanktonic adj. Pertaining to, or derived from, phytoplankton.
PHYTOPLANKTONIC adj. relating to phytoplankton.
SPLANCHNOLOGIESSPLANCHNOLOGY n. the study of the entrails or viscera.
THYROCALCITONINthyrocalcitonin n. (Biochemistry) Alternative form of calcitonin.
THYROCALCITONIN n. a hormone secreted by the thyroid gland, controlling the rate of bone destruction.
UNCHRONOLOGICALunchronological adj. Not chronological.
UNCHRONOLOGICAL adj. not chronological.

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: 190 words
  • Scrabble in French: 14 words
  • Scrabble in Spanish: 3 words
  • Scrabble in Italian: 27 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 15 words


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