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There are 16 thirteen-letter words containing H, 2O, 2P, S, T and Y

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.
HYPERTROPHOUShypertrophous adj. (Dated, medicine) Hypertrophic.
HYPERTROPHOUS adj. of an organ, abnormally enlarged.
HYPOPHOSPHATEhypophosphate n. (Inorganic chemistry) The oxyanion of phosphorus P2O64- derived from hypophosphoric acid; any salt containing…
HYPOPHOSPHATE n. any salt or ester of hypophosphoric acid.
HYPOPHOSPHITEhypophosphite n. (Chemistry) any salt of hypophosphorous acid.
HYPOPHOSPHITE n. a salt of hypophosphorous acid.
LEPTOPHYLLOUSleptophyllous adj. (Botany) Having long, slender leaves.
LEPTOPHYLLOUS adj. having long thin leaves.
LIPODYSTROPHYlipodystrophy n. (Pathology) A disorder characterized by abnormal or degenerative conditions of the body’s adipose tissue.
LIPODYSTROPHY n. a medical condition characterized by abnormal or degenerative conditions of the body's adipose tissue.
OPISTHOGRAPHYopisthography n. A writing upon the back of anything, as upon the back of a sheet already written upon on one side.
OPISTHOGRAPHY n. inscribing on the back as well as the front.
PHOSPHORYLATEphosphorylate v. (Transitive) to cause phosphorylation.
phosphorylate v. (Intransitive) to undergo phosphorylation.
PHOSPHORYLATE v. to cause (an organic compound) to take up or combine with phosphoric acid or a phosphorus-containing group.
PHOTOCOPYINGSphotocopyings n. Plural of photocopying.
PHOTOCOPYING n. the act of making a photocopy.
PHOTOGLYPHIESPHOTOGLYPHY n. photography by photoglyph.
PHOTOPOLYMERSphotopolymers n. Plural of photopolymer.
PHOTOPOLYMER n. a photosensitive plastic used esp. in the manufacture of printing plates.
PHOTOTYPESETSphototypesets v. Third-person singular simple present indicative form of phototypeset.
PHOTOTYPESET v. to set (type matter) by phototypesetting.
PSYCHOTROPICSpsychotropics n. Plural of psychotropic.
PSYCHOTROPIC n. a drug acting on the mind.
PYROMORPHITESpyromorphites n. Plural of pyromorphite.
PYROMORPHITE n. a green, brown, or yellow lead ore.
PYROPHOSPHATEpyrophosphate n. (Inorganic chemistry) Any salt or ester of pyrophosphoric acid.
PYROPHOSPHATE n. a salt or ester of pyrophosphoric acid.
PYTHONOMORPHSpythonomorphs n. Plural of pythonomorph.
PYTHONOMORPH n. a large marine reptile of the Cretaceous period, with long, scaly body and paddle-shaped limbs.

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: 71 words
  • Scrabble in French: 14 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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