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There are 16 thirteen-letter words containing H, 3O, 2P, R and S

ANTHROPOSOPHYanthroposophy n. (Archaic, as used before Rudolf Steiner) Knowledge or understanding of human nature.
anthroposophy n. A philosophy founded in the early 20th century by the esotericist Rudolf Steiner (also capitalized as…
Anthroposophy prop.n. Alternative letter-case form of anthroposophy.
COSPONSORSHIPcosponsorship n. Joint sponsorship by more than one party.
COSPONSORSHIP n. the state of being a cosponsor.
MORPHOTROPIESMORPHOTROPY n. the effect on crystalline form of the addition or substitution of an element or radical.
OPHIOMORPHOUSophiomorphous adj. Having the form of a snake.
OPHIOMORPHOUS adj. snakelike, also OPHIOMORPHIC.
PHOTOCOMPOSERphotocomposer n. A machine that performs photocomposition.
PHOTOCOMPOSER n. one who photocomposes.
PHOTOPHORESESPHOTOPHORESIS n. migration of suspended particles under the influence of light.
PHOTOPHORESISphotophoresis n. The slow drift of fine particles suspended in a gas away from a strong light source.
PHOTOPHORESIS n. migration of suspended particles under the influence of light.
PHOTOPOLYMERSphotopolymers n. Plural of photopolymer.
PHOTOPOLYMER n. a photosensitive plastic used esp. in the manufacture of printing plates.
PHOTOPRODUCTSphotoproducts n. Plural of photoproduct.
PHOTOPRODUCT n. a product of a photochemical reaction.
PHOTOTROPISMSphototropisms n. Plural of phototropism.
PHOTOTROPISM n. movement directed by light.
POGONOPHORANSpogonophorans n. Plural of pogonophoran.
POGONOPHORAN n. any of a phylum Pogonophora of marine wormlike animals.
PROSOPOGRAPHYprosopography n. A study of the individuals in a group of people within a specific context and their relationships.
PROSOPOGRAPHY n. a biographical sketch; a description of person.
PROTOTROPHIESprototrophies n. Plural of prototrophy.
PROTOTROPHY n. the state of being prototrophic.
PYTHONOMORPHSpythonomorphs n. Plural of pythonomorph.
PYTHONOMORPH n. a large marine reptile of the Cretaceous period, with long, scaly body and paddle-shaped limbs.
SIPHONOPHORESsiphonophores n. Plural of siphonophore.
SIPHONOPHORE n. a marine creature, colonial in habit.
TROPHOTROPISMtrophotropism n. The movements of the organs in a growing plant, as towards nutrient substances, induced by the chemical…
TROPHOTROPISM n. direction of growth by nutritional factors.

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: 72 words
  • Scrabble in French: 16 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: 1 word
  • Scrabble in German: no word
  • Scrabble in Romanian: 2 words


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