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There are 11 twelve-letter words containing H, 2O, P, 2R, S and Y

CHLORPYRIFOSchlorpyrifos n. A crystalline organophosphate insecticide that inhibits acetylcholinesterase.[diethoxy-sulfanylidene-(3,5,6-trichloropy…
CRYOPHORUSEScryophoruses n. Plural of cryophorus.
CRYOPHORUS n. an instrument for showing the decrease in the temperature of water by its evaporation.
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.
HYPERCOLOURSHYPERCOLOUR n. a dye that causes a fabric to change colour with a change of temperature.
OROPHARYNGESoropharynges n. Plural of oropharynx.
OROPHARYNX n. the part of the pharynx between the soft palate and the epiglottis.
OROPHARYNXESoropharynxes n. Plural of oropharynx.
OROPHARYNX n. the part of the pharynx between the soft palate and the epiglottis.
PORPHYROPSINporphyropsin n. Any of a group of purple carotenoid pigments, similar to rhodopsin, in the retinas of some fish.
PORPHYROPSIN n. a purple pigment in the retinal rods of freshwater fishes that resembles rhodopsin.
PROTOHISTORYprotohistory n. The period between prehistory and history, during which a culture or civilization has not yet developed…
PROTOHISTORY n. the study of human beings in the times that immediately antedate recorded history.
PYROPHORUSESPYROPHORUS n. any substance capable of igniting spontaneously on exposure to air.
THYROTROPINSthyrotropins n. Plural of thyrotropin.
THYROTROPIN n. a hormone, produced in the anterior lobe of the pituitary gland, which stimulates the thyroid, also THYROTROPHIN.
URETHROSCOPYurethroscopy n. (Medicine) Examination of the interior of the urethra.
URETHROSCOPY n. medical examination of the urethra.

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: 35 words
  • Scrabble in French: 3 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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