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List of 12-letter words containing

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There are 14 twelve-letter words containing A, D, E, H, I, O, R and Y

ANTIHYDROGENantihydrogen n. (Physics, uncountable) The antimatter equivalent of hydrogen, consisting of an antiproton and an positron…
antihydrogen n. (Physics, countable) An atom of the antimatter equivalent of hydrogen.
ANTIHYDROGEN n. an antimatter form of hydrogen.
CHIMNEYBOARDCHIMNEYBOARD n. a board blocking up a fireplace.
DEHYDRATIONSdehydrations n. Plural of dehydration.
DEHYDRATION n. loss or withdrawal of moisture.
HEMODIALYZERhemodialyzer n. Something that performs hemodialysis.
HEMODIALYZER n. an artificial kidney.
HOLIDAYMAKERholidaymaker n. (Britain) someone who is on holiday.
holiday-maker n. (Britain) Someone who is on holiday.
HOLIDAYMAKER n. someone on holiday.
HYDROCEPHALIhydrocephali n. Plural of hydrocephalus.
HYDROCEPHALUS n. an accumulation of serous fluid within the cranial cavity, also HYDROCEPHALY.
HYDROELASTIChydroelastic adj. (Physics) undergoing elastic deformation as the result of the flow of a fluid, especially that of water.
HYDROELASTIC adj. as in hydroelastic suspension, a system of car suspension in which a fluid provides interconnection between the front and rear suspension units.
HYDROMANCIEShydromancies n. Plural of hydromancy.
HYDROMANCY n. divination by the appearance or motion of liquids (as water).
HYDROPATHIEShydropathies n. Plural of hydropathy.
HYDROPATHY n. the study of treating diseases with water.
HYRACOIDEANSHYRACOIDEAN n. any member of a genus of mammals including the daman and the dassie or hyrax, also HYRACOID.
PYRITOHEDRALpyritohedral adj. Having the shape of pyrites.
pyritohedral adj. (Mathematics) Having the shape of a pyritohedron.
PYRITOHEDRAL adj. of or like a pyritohedron, a pentagonal dodecahedron.
RADIOTHERAPYradiotherapy n. The therapeutic use of ionizing radiation, almost exclusively used for the treatment of malignant disease.
RADIOTHERAPY n. treatment by radiation.
REHYDRATIONSrehydrations n. Plural of rehydration.
REHYDRATION n. the act of rehydrating.
SPHEROIDALLYspheroidally adv. In a spheroidal manner.
SPHEROIDAL adv. having the form of a spheroid.

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: 98 words
  • Scrabble in French: 17 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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