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There are 17 twelve-letter words containing H, 3O, 2P, R and T

LOPHOPHORATElophophorate adj. (Zoology) Having a lophophore.
lophophorate n. (Zoology) A member of the Lophophorata, a clade of invertebrate animals.
LOPHOPHORATE adj. of or like a lophophore, a ring of ciliated tentacles round the mouth of some sedentary marine animals.
MORPHOTROPICmorphotropic adj. (Crystallography) Of or pertaining to morphotropism.
morphotropic adj. Describing a phase transition due to a change in composition.
morphotropic adj. Describing the phase boundary between tetragonal and rhombohedral regions of a ferroelectric.
PHOTOCOPIERSphotocopiers n. Plural of photocopier.
PHOTOCOPIER n. a machine for copying.
PHOTOPERIODSphotoperiods n. Plural of photoperiod.
PHOTOPERIOD n. the period during every 24 hours when an organism is exposed to daylight.
PHOTOPOLYMERphotopolymer n. (Chemistry) Any polymer that reacts to light with a physical or chemical change, used especially for teeth fillings.
PHOTOPOLYMER n. a photosensitive plastic used esp. in the manufacture of printing plates.
PHOTOPRODUCTphotoproduct n. (Chemistry) Any product of a photochemical reaction.
PHOTOPRODUCT n. a product of a photochemical reaction.
PHOTOTROPHICphototrophic adj. (Biology) That exhibits phototrophy.
PHOTOTROPHIC adj. relating to phototropism, movement directed by light.
PHOTOTROPIESPHOTOTROPY n. change of colour due to wavelength of incident light.
PHOTOTROPISMphototropism n. (Biology) The movement of a plant towards or away from light.
PHOTOTROPISM n. movement directed by light.
POSTWORKSHOPpostworkshop adj. After a workshop (educational course or conference).
POSTWORKSHOP adj. taking place after a workshop.
PROPHETHOODSprophethoods n. Plural of prophethood.
PROPHETHOOD n. the state of being a prophet.
PROTOMORPHICprotomorphic adj. (Biology) Having the most primitive character; in the earliest form.
PROTOMORPHIC adj. primordial; primitive.
PROTOPHLOEMSprotophloems n. Plural of protophloem.
PROTOPHLOEM n. the first-formed phloem that develops from procambium, usually associated with a region of rapid growth.
PROTOTROPHICprototrophic adj. (Biology) Of or pertaining to a prototroph or to prototrophy.
PROTOTROPHIC adj. of bacteria, feeding directly on uncombined elements.
PYTHONOMORPHpythonomorph n. Any large extinct reptile of the taxon Pythonomorpha.
pythonomorph n. Any member of the taxon Pythonomorpha.
PYTHONOMORPH n. a large marine reptile of the Cretaceous period, with long, scaly body and paddle-shaped limbs.
TROPHOTROPICtrophotropic adj. Relating to trophotropy.
TROPHOTROPIC adj. related to trophotropism, direction of growth by nutritional factors.
TROPOPHILOUStropophilous adj. (Biology) Adapted to seasonal changes.
TROPOPHILOUS adj. flourishing in seasonal extremes of climate.

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: 47 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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