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There are 10 fifteen-letter words containing E, H, 2I, 3O and P

BIOPSYCHOLOGIESBIOPSYCHOLOGY n. the branch of psychology, or of biology, which deals with the interaction of mind and body, and the effects of this interaction.
DIAPHOTOTROPIESDIAPHOTOTROPY n. the state of being diaphototropic, turning transversely to the light.
ECOPHYSIOLOGIESecophysiologies n. Plural of ecophysiology.
ECOPHYSIOLOGY n. the science of the interrelationships between the physiology of organisms and their environment.
PHOTODISSOCIATEphotodissociate v. To cause, or to undergo photodissociation.
PHOTODISSOCIATE v. to effect photodissociation, dissociation produced by the absorption of radiant energy.
PHOTOEXCITATIONphotoexcitation n. (Chemistry) The formation of an excited state by the absorption of a photon.
PHOTOEXCITATION n. the process of exciting the atoms or molecules of a substance by the absorption of radiant energy.
PHOTOPERIODISMSphotoperiodisms n. Plural of photoperiodism.
PHOTOPERIODISM n. a plant or animal's response or capacity to respond to photoperiod.
PHOTOTOXICITIESphototoxicities n. Plural of phototoxicity.
PHOTOTOXICITY n. the state of being phototoxic.
PSYCHOBIOLOGIESpsychobiologies n. Plural of psychobiology.
PSYCHOBIOLOGY n. the study of the biology of the mind.
THERIOMORPHOSISTHERIOMORPHOSIS n. transformation into a beast.
ZOOPHYSIOLOGIESZOOPHYSIOLOGY n. the study of animal physiology.

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: 78 words
  • Scrabble in French: 15 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: 2 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 39 words


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