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There are 14 thirteen-letter words containing H, M, 2O, 2P, R and S

HAPTOTROPISMSHAPTOTROPISM n. curving in response to touch, as a tendril.
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.
PAEDOMORPHISMpaedomorphism n. Alternative spelling of pedomorphism.
PAEDOMORPHISM n. retention in the adult of infantile or juvenile characters, also PAEDOMORPHOSIS.
PHOTOCOMPOSERphotocomposer n. A machine that performs photocomposition.
PHOTOCOMPOSER n. one who photocomposes.
PHOTOPOLYMERSphotopolymers n. Plural of photopolymer.
PHOTOPOLYMER n. a photosensitive plastic used esp. in the manufacture of printing plates.
PHOTOTROPISMSphototropisms n. Plural of phototropism.
PHOTOTROPISM n. movement directed by light.
PLEOMORPHISMSpleomorphisms n. Plural of pleomorphism.
PLEOMORPHISM n. polymorphism; the occurrence of two or more structural forms during a life cycle.
POLYMORPHISMSpolymorphisms n. Plural of polymorphism.
POLYMORPHISM n. the circumstance in which two minerals with different crystalline structures have identical chemical compositions, e.g. diamond and graphite.
PSEUDOMORPHICpseudomorphic adj. Of or pertaining to a pseudomorph or to pseudomorphism.
PSEUDOMORPHIC adj. of or like a pseudomorph, also PSEUDOMORPHOUS.
PYROMORPHITESpyromorphites n. Plural of pyromorphite.
PYROMORPHITE n. a green, brown, or yellow lead ore.
PYTHONOMORPHSpythonomorphs n. Plural of pythonomorph.
PYTHONOMORPH n. a large marine reptile of the Cretaceous period, with long, scaly body and paddle-shaped limbs.
SPERMATOPHOREspermatophore n. (Biology) A spermospore.
spermatophore n. (Zoology) A capsule or pocket enclosing a number of spermatozoa, found in many annelids, brachiopods…
SPERMATOPHORE n. a case enclosing the spermatozoa of certain crustaceans, molluscs and amphibians.
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 1Word.ws and WikWik.org.

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See this list for:

  • English Wiktionary: 74 words
  • Scrabble in French: 11 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: 3 words
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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