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There are 14 twelve-letter words containing I, 2O, P, R, 2S and Y

CRYPTOBIOSESCRYPTOBIOSIS n. a temporary state in an organism in which metabolic activity is absent or undetectable.
CRYPTOBIOSIScryptobiosis n. (Biology) A state of life, entered by some organisms, in which all metabolic activity is temporarily halted.
CRYPTOBIOSIS n. a temporary state in an organism in which metabolic activity is absent or undetectable.
CYCLOSPORINScyclosporins n. Plural of cyclosporin.
CYCLOSPORIN n. an immunosuppressant drug used in organ transplants, also CYCLOSPORINE.
HYPEROSTOSIShyperostosis n. (Medicine) An excessive growth or thickening of bone.
HYPEROSTOSIS n. abnormal growth of bone tissue.
HYPOCORISMASHYPOCORISMA n. the use of a pet name or nickname, also HYPOCORISM.
LYOSORPTIONSLYOSORPTION n. the adsorption of a liquid on a solid surface, esp. of a solvent on suspended particles.
POLYAMORISTSpolyamorists n. Plural of polyamorist.
POLYCHROISMSPOLYCHROISM n. the state of being polychroic.
POLYCROTISMSPOLYCROTISM n. the state of having several beats to each heartbeat.
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.
PROMISSORILYpromissorily adv. In a promissory manner.
PROMISSORY adv. containing a promise or binding declaration of something to be done or forborne.
PROSYLLOGISMprosyllogism n. (Logic) A syllogism that is preliminary or logically essential to another syllogism.
prosyllogism n. (Logic) The conclusion of such a syllogism, which becomes a premise of the following syllogism.
pro-syllogism n. Alternative form of prosyllogism.
PYROGNOSTICSpyrognostics n. (Dated) The characteristics of a substance, especially of a mineral or metal salt, that are revealed…
PYROGNOSTICS n. the characteristics of a mineral, such as fusibility, that are revealed by the application of heat.
TROPOMYOSINStropomyosins n. Plural of tropomyosin.
TROPOMYOSIN n. a filamentous protein which controls the interaction of actin and myosin in muscle fibres.

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: 47 words
  • Scrabble in French: 5 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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