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There are 20 twelve-letter words containing H, L, 2O, P, R, S and Y

CHLOROPHYLLSchlorophylls n. Plural of chlorophyll.
CHLOROPHYLL n. the green colouring in plants concerned with the production of sugars, also CHLOROPHYL.
CHLORPYRIFOSchlorpyrifos n. A crystalline organophosphate insecticide that inhibits acetylcholinesterase.[diethoxy-sulfanylidene-(3,5,6-trichloropy…
GLOSSOGRAPHYglossography n. The writing of glossaries or glosses.
glossography n. The study of ancient words or languages.
GLOSSOGRAPHY n. the compilation of glossaries.
HOMOPOLYMERShomopolymers n. Plural of homopolymer.
HOMOPOLYMER n. a DNA or RNA strand whose nucleotides are all of the same kind.
HYDROPHILOUShydrophilous adj. (Biology) That grows or thrives in or near water.
hydrophilous adj. (Botany) That is pollinated by water.
HYDROPHILOUS adj. water-loving; pollinated by agency of water.
HYGROPHILOUShygrophilous adj. (Botany, of a plant) adapted for growth in a damp or wet environment.
HYGROPHILOUS adj. living in water or moist places, also HYGROPHIL.
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.
HYPERBOLOIDShyperboloids n. Plural of hyperboloid.
HYPERBOLOID n. a solid figure in which some of the plane sections are hyperbolas.
HYPERCOLOURSHYPERCOLOUR n. a dye that causes a fabric to change colour with a change of temperature.
HYPOCHLOROUShypochlorous adj. (Chemistry) Pertaining to or derived from chlorine having a valence lower than in chlorous compounds.
HYPOCHLOROUS adj. of or derived from hypochlorous acid.
HYPOPLASTRONhypoplastron n. The third lateral plate in the plastron of turtles.
HYPOPLASTRON n. the plate behind the hyoplastron in a turtle's plastron.
PHYTOSTEROLSphytosterols n. Plural of phytosterol.
PHYTOSTEROL n. any of various sterols derived from plants.
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.
POLYHEDROSESpolyhedroses n. Plural of polyhedrosis.
POLYHEDROSIS n. an often fatal disease of certain insect larvae or decapod crustaceans, caused by viruses containing DNA.
POLYHEDROSISpolyhedrosis n. Any of several diseases of insect larvae that are caused by the polyhedral viruses, family Baculoviridae.
POLYHEDROSIS n. an often fatal disease of certain insect larvae or decapod crustaceans, caused by viruses containing DNA.
POLYHISTORICpolyhistoric adj. Synonym of polyhistorical.
POLYHISTORIC adj. relating to polyhistory, great and varied learning.
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.

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: 69 words
  • Scrabble in French: 11 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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