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There are 19 twelve-letter words containing H, M, 2O, P, R, S and Y

AMYOTROPHIESamyotrophies n. Plural of amyotrophy.
AMYOTROPHY n. atrophy of the muscles.
HOMOPOLYMERShomopolymers n. Plural of homopolymer.
HOMOPOLYMER n. a DNA or RNA strand whose nucleotides are all of the same kind.
HYDROTROPISMhydrotropism n. (Biology) The movement of a plant (or other organism) in response to water, either towards or away from water.
HYDROTROPISM n. growth in the direction of water.
HYLOMORPHISMhylomorphism n. (Philosophy) The doctrine that every physical substance is the sum of its component matter and the form…
hylomorphism n. (Computer science) Composition of an anamorphism and a catamorphism.
HYLOMORPHISM n. the belief that matter is the cause of the universe.
HYMENOPHOREShymenophores n. Plural of hymenophore.
HYMENOPHORE n. the fruiting body of some basidiomycetous fungi.
HYPOCORISMASHYPOCORISMA n. the use of a pet name or nickname, also HYPOCORISM.
HYPSOCHROMESHYPSOCHROME n. a shift to a shorter wavelength in the absorption spectrum of a compound.
HYPSOCHROMIChypsochromic adj. (Physics) Of a change in the position of a spectral band, to a higher frequency.
HYPSOCHROMIC adj. relating to a hypsochrome, a shift to a shorter wavelength in the absorption spectrum of a compound.
MORPHOSYNTAXmorphosyntax n. (Linguistics) Morphology and syntax regarded as an interlinked unit.
morpho-syntax n. (Linguistics) The system of the internal structure of words (morphology) and the way in which words…
morpho-syntax n. (Linguistics, formal) Grammar.
PHYTOCHROMESphytochromes n. Plural of phytochrome.
PHYTOCHROME n. a plant pigment which absorbs red or infrared rays and acts as an enzyme controlling growth.
POLYCHROISMSPOLYCHROISM n. the state of being polychroic.
POLYCHROMIESpolychromies n. Plural of polychromy.
POLYCHROMY n. the art or practice of combining different colors, esp. brilliant ones, in an artistic way.
POLYCHROMOUSpolychromous adj. Of or pertaining to polychromy; many-colored; polychromatic.
POLYCHROMOUS adj. many-coloured, also POLYCHROME, POLYCHROMIC.
POLYMORPHISMpolymorphism n. The ability to assume different forms or shapes.
polymorphism n. (Biology) The coexistence, in the same locality, of two or more distinct forms independent of sex, not…
polymorphism n. (Object-oriented programming) The feature pertaining to the dynamic treatment of data elements based…
POLYMORPHOUSpolymorphous adj. Having, or assuming, a variety of forms, characters, or styles.
polymorphous adj. (Biology) Having, or occurring in, several distinct forms.
polymorphous adj. (Chemistry) Crystallizing in two or more different forms; polymorphic.
SYNAPOMORPHYsynapomorphy n. (Cladistics) A derived trait that is shared by two or more taxa of shared ancestry.
ZYGOMORPHIESZYGOMORPHY n. the state of having flowers symmetrical about one axis.
ZYGOMORPHISMzygomorphism n. Bilateral symmetry in flowers.
ZYGOMORPHISM n. the state of being zygomorphic, bilaterally symmetrical.
ZYGOMORPHOUSzygomorphous adj. Zygomorphic.
ZYGOMORPHOUS adj. bilaterally symmetrical, also ZYGOMORPHIC.

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: 13 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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