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There are 14 fifteen-letter words containing I, 3O, P, R, T and Y

ANTHROPOBIOLOGYanthropobiology n. Bioanthropology.
ANTHROPOBIOLOGY n. the study of human biology.
CRYPTOZOOLOGIESCRYPTOZOOLOGY n. the study of and search for animals and esp. legendary animals.
CRYPTOZOOLOGISTcryptozoologist n. (Cryptozoology) One who studies cryptozoology.
CRYPTOZOOLOGIST n. one who studies cryptozoology.
CYTOPHOTOMETRICcytophotometric adj. Of or relating to cytophotometry, or measured using a cytophotometer.
CYTOPHOTOMETRIC adj. relating to cytophotometry.
LEPIDOPTEROLOGYlepidopterology n. (Biology, zoology, entomology) The scientific study of butterflies and moths (the Lepidoptera).
lepidopterology n. Lepidoptery, (the hobby of butterfly collecting).
LEPIDOPTEROLOGY n. the study of butterflies and moths.
MICROPHOTOMETRYmicrophotometry n. Measurement performed with a microphotometer.
MICROPHOTOMETRY n. measurement by microphotometer, an instrument for measuring the amount of light transmitted or reflected by small areas or for measuring the relative densities of spectral lines on a photographic film or plate.
MICROSPOROCYTESmicrosporocytes n. Plural of microsporocyte.
MICROSPOROCYTE n. a microspore mother cell.
ONYCHOCRYPTOSISonychocryptosis n. (Medicine) ingrowing toenail.
ONYCHOCRYPTOSIS n. the condition of having an ingrowing toenail.
PHOSPHORYLATIONphosphorylation n. (Biochemistry) the process of transferring a phosphate group from a donor to an acceptor; often catalysed by enzymes.
PHOSPHORYLATION n. the process of phosphorylating a chemical compound.
PHOTOTROPICALLYphototropically adv. In a phototropic manner.
PHOTOTROPIC adv. relating to phototropism, movement directed by light.
PROPORTIONALITYproportionality n. (Uncountable) the property of being proportional.
proportionality n. (Uncountable) the principle that government action ought to be proportional to the ends achieved (e…
proportionality n. (Countable) the degree to which something is in proportion.
PROPORTIONATELYproportionately adv. In a proportionate manner; with due proportion; proportionally.
PROPORTIONATE adv. in proportion.
PROPOSITIONALLYpropositionally adv. In a propositional manner.
PROPOSITIONAL adv. of the nature of a proposition.
PROTOPORPHYRINSprotoporphyrins n. Plural of protoporphyrin.
PROTOPORPHYRIN n. metal-free porphyrin derived from blood hemin.

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: 162 words
  • Scrabble in French: 5 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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