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There are 20 fifteen-letter words containing H, I, L, N, O, 2T and Y

CYANOETHYLATINGcyanoethylating v. Present participle of cyanoethylate.
CYANOETHYLATE v. to introduce a cyano-ethyl group into.
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.
HELIOCENTRICITYheliocentricity n. The quality of being heliocentric; heliocentrism.
HELIOCENTRICITY n. the state of being heliocentric.
HYPNOTISABILITYhypnotisability n. Alternative spelling of hypnotizability.
HYPNOTISABILITY n. the quality of being hypnotisable, also HYPNOTIZABILITY.
HYPNOTIZABILITYhypnotizability n. The ability to be hypnotized.
HYPNOTIZABILITY n. the state of being hypnotizable, also HYPNOTISABILITY.
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.
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.
MOUTHWATERINGLYmouthwateringly adv. In a mouthwatering manner.
mouth-wateringly adv. In a mouth-watering manner.
MOUTHWATERING adv. arousing the appetite.
MYTHOLOGISATIONmythologisation n. Alternative form of mythologization.
MYTHOLOGISATION n. the process of mythologising, also MYTHOLOGIZATION.
MYTHOLOGIZATIONmythologization n. The act or process of mythologizing.
MYTHOLOGIZATION n. the process of mythologizing, also MYTHOLOGISATION.
NONTHEISTICALLYSorry, definition not available.
NUCLEOSYNTHETICnucleosynthetic adj. Of or pertaining to nucleosynthesis.
NUCLEOSYNTHETIC adj. relating to nucleosynthesis.
ORTHODONTICALLYorthodontically adv. By orthodontic means.
ORTHODONTIC adv. relating to orthodontics, the rectification of crookedness in the teeth.
PHYTOPLANKTONICphytoplanktonic adj. Pertaining to, or derived from, phytoplankton.
PHYTOPLANKTONIC adj. relating to phytoplankton.
POLYSYNTHETICALpolysynthetical adj. Alternative form of polysynthetic.
POLYSYNTHETICAL adj. made up of many separate elements, also POLYSYNTHETIC.
POLYSYNTHETISMSPOLYSYNTHETISM n. the state of being polysynthetic.
THYROCALCITONINthyrocalcitonin n. (Biochemistry) Alternative form of calcitonin.
THYROCALCITONIN n. a hormone secreted by the thyroid gland, controlling the rate of bone destruction.
UNTRUSTWORTHILYuntrustworthily adv. In an untrustworthy manner.
UNTRUSTWORTHY adv. not trustworthy.

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: 144 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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