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There are 12 fifteen-letter words containing H, I, 2N, 2O, S and Y

CHOLECYSTOKININcholecystokinin n. (Biochemistry) Any of several peptide hormones that stimulate the digestion of fat and protein; abbreviated to CCK.
CHOLECYSTOKININ n. a hormone secreted esp. by the duodenal mucosa that regulates the emptying of the gallbladder and secretion of enzymes by the pancreas and that has been found in the brain.
DEHYPNOTISATIONDEHYPNOTISATION n. the process of dehypnotising, also DEHYPNOTIZATION.
HYDROGENISATIONhydrogenisation n. Alternative form of hydrogenization.
HYDROGENISATION n. the process of hydrogenising, also HYDROGENIZATION.
LABYRINTHODONTSlabyrinthodonts n. Plural of labyrinthodont.
LABYRINTHODONT n. an extinct amphibian, so called from a mazy pattern on a section of its teeth.
NONHISTORICALLYnonhistorically adv. In a nonhistorical manner.
NONPSYCHOACTIVEnonpsychoactive adj. Not psychoactive.
ORNITHORHYNCHUSornithorhynchus n. A platypus (genus Ornithorhynchus).
Ornithorhynchus prop.n. A taxonomic genus within the family Ornithorhynchidae – the single species Ornithorhynchus anatinus…
ORNITHORHYNCHUS n. the duckbill platypus.
POSTSYNCHRONISEPOSTSYNCHRONISE v. to add sound, such as dubbing, to a film or video after shooting is completed, also POSTSYNCHRONIZE.
POSTSYNCHRONIZEPOSTSYNCHRONIZE v. to add sound, such as dubbing, to a film or video after shooting is completed, also POSTSYNCHRONISE.
SYNCHRONISATIONsynchronisation n. Non-Oxford British spelling standard spelling of synchronization.
SYNCHRONISATION n. the act of synchronising, also SYNCHRONIZATION.
SYNCHRONIZATIONsynchronization n. The state or property of being synchronized.
synchronization n. (Military) The arrangement of military actions in time, space, and purpose to produce maximum relative…
SYNCHRONIZATION n. the act of synchronizing, also SYNCHRONISATION.
SYNCHRONOLOGIESsynchronologies n. Plural of synchronology.
SYNCHRONOLOGY n. a chronological arrangement side by side.

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: 85 words
  • Scrabble in French: 13 words
  • Scrabble in Spanish: 1 word
  • Scrabble in Italian: no word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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