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There are 9 fifteen-letter words containing 3O, P and 3T

CYTOPATHOLOGISTcytopathologist n. A scientist whose speciality is cytopathology.
CYTOPHOTOMETRICcytophotometric adj. Of or relating to cytophotometry, or measured using a cytophotometer.
CYTOPHOTOMETRIC adj. relating to cytophotometry.
PHOTOAUTOTROPHSphotoautotrophs n. Plural of photoautotroph.
PHOTOAUTOTROPH n. an organism capable of synthesizing its own food from inorganic substances using light as an energy source.
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.
PHOTOTOXICITIESphototoxicities n. Plural of phototoxicity.
PHOTOTOXICITY n. the state of being phototoxic.
PHOTOTRANSISTORphototransistor n. (Electronics) Any semiconductor device whose electrical characteristics are light-sensitive.
PHOTOTRANSISTOR n. a junction transistor, whose base signal is generated by illumination of the base.
PROSTHODONTISTSprosthodontists n. Plural of prosthodontist.
PROSTHODONTIST n. a specialist in prosthodontics.
PROTHONOTARIATSprothonotariats n. Plural of prothonotariat.
PROTHONOTARIAT n. the college constituted by the twelve apostolical prothonotaries (bishops and senior members of the curia) in Rome, also PROTONOTARIAT.
PROTISTOLOGISTSprotistologists n. Plural of protistologist.
PROTISTOLOGIST n. a specialist in protistology.

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: 90 words
  • Scrabble in French: 2 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: 32 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 13 words


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