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There are 20 twelve-letter words containing D, E, H, I, N, 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.
HETERODYNINGheterodyning v. Present participle of heterodyne.
HETERODYNE v. to change the frequency of (a signal) by imposing on a continuous wave another of slightly different length to produce beats.
HYDROGENISEDhydrogenised v. Simple past tense and past participle of hydrogenise.
HYDROGENISE v. to hydrogenate, also HYDROGENIZE.
HYDROGENISEShydrogenises v. Third-person singular simple present indicative form of hydrogenise.
HYDROGENISE v. to hydrogenate, also HYDROGENIZE.
HYDROGENIZEDhydrogenized v. Simple past tense and past participle of hydrogenize.
HYDROGENIZE v. to hydrogenate, also HYDROGENISE.
HYDROGENIZEShydrogenizes v. Third-person singular simple present indicative form of hydrogenize.
HYDROGENIZE v. to hydrogenate, also HYDROGENISE.
HYDROKINETIChydrokinetic adj. Of or pertaining to hydrokinetics.
hydrokinetic adj. Of or pertaining to the kinetic energy of moving fluids.
HYDROKINETIC adj. of or relating to the motions of fluids or the forces which produce or affect such motions, also HYDROKINETICAL.
HYDROMANCIEShydromancies n. Plural of hydromancy.
HYDROMANCY n. divination by the appearance or motion of liquids (as water).
HYDROQUINONEhydroquinone n. (Organic chemistry) The diphenol para-dihydroxy benzene, used as a mild reducing agent in photographic…
HYDROQUINONE n. another name for quinol.
HYDROXYZINEShydroxyzines n. Plural of hydroxyzine.
HYDROXYZINE n. a compound used as an antihistamine and tranquilizer.
HYDROZINCITEhydrozincite n. (Mineralogy) A white carbonate mineral with the chemical formula Zn5(CO3)2(OH)6.
HYDROZINCITE n. a monoclinic basic carbonate of zinc that is a secondary mineral occurring as light-coloured crusts on zinc deposits.
HYRACOIDEANSHYRACOIDEAN n. any member of a genus of mammals including the daman and the dassie or hyrax, also HYRACOID.
PYRITOHEDRONpyritohedron n. (Mathematics) An irregular dodecahedron, the faces of which are identical but irregular pentagons.
pyritohedron n. (Mineralogy) The shape of one of the crystal habits of pyrite.
PYRITOHEDRON n. a pentagonal dodecahedron.
REHYDRATIONSrehydrations n. Plural of rehydration.
REHYDRATION n. the act of rehydrating.
REHYPNOTISEDREHYPNOTISE v. to hypnotise again, also REHYPNOTIZE.
REHYPNOTIZEDrehypnotized v. Simple past tense and past participle of rehypnotize.
REHYPNOTIZE v. to hypnotize again, also REHYPNOTISE.
SYNCHRONISEDsynchronised adj. Operating in unison, in a state of synchronisation.
synchronised v. Simple past tense and past participle of synchronise.
SYNCHRONISE v. to cause to happen at the same time, also SYNCHRONIZE.
SYNCHRONIZEDsynchronized adj. Having attained synchronization, together, coordinated, combined.
synchronized v. Simple past tense and past participle of synchronize.
SYNCHRONIZE v. to cause to happen at the same time, also SYNCHRONISE.

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: 113 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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