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There are 20 thirteen-letter words containing D, E, H, I, N, O, R and Y

ANTIHYDROGENSantihydrogens n. Plural of antihydrogen.
ANTIHYDROGEN n. an antimatter form of hydrogen.
CHIMNEYBOARDSCHIMNEYBOARD n. a board blocking up a fireplace.
CYBERCHONDRIAcyberchondria n. Anxiety concerning one’s health, caused by visiting medical websites.
CYBERCHONDRIA n. unfounded anxiety concerning the state of one's health brought on by visiting health and medical websites.
DEHYDROGENISEdehydrogenise v. Alternative spelling of dehydrogenize.
DEHYDROGENISE v. to remove hydrogen from, also DEHYDROGENIZE.
DEHYDROGENIZEdehydrogenize v. To dehydrogenate.
DEHYDROGENIZE v. to remove the hydrogen from, also DEHYDROGENISE.
DRYOPITHECINEdryopithecine adj. (Zoology) Of, or relating to, the primate genus Dryopithecus, considered to be relatives of both humans and apes.
dryopithecine n. (Zoology) Any member of this genus of primates.
DRYOPITHECINE n. a gorilla, chimpanzee or man.
DYSMENORRHEICdysmenorrheic adj. Of, pertaining to, or experiencing dysmenorrhea.
DYSMENORRHEIC adj. relating to dysmenorrhea, also DYSMENORRHOEIC.
HYALURONIDASEhyaluronidase n. (Biochemistry) Any enzyme that catalyses the hydrolysis of hyaluronic acid.
HYALURONIDASE n. a mucolytic enzyme that facilitates the spread of fluids through tissues by lowering the viscosity of hyaluronic acid.
HYDROGENATINGhydrogenating v. Present participle of hydrogenate.
HYDROGENATE v. to combine or treat with hydrogen.
HYDROGENATIONhydrogenation n. (Chemistry) The chemical reaction of hydrogen with another substance, especially with an unsaturated…
HYDROGENATION n. the act of hydrogenating.
HYDROGENISINGhydrogenising v. Present participle of hydrogenise.
HYDROGENISE v. to hydrogenate, also HYDROGENIZE.
HYDROGENIZINGhydrogenizing v. Present participle of hydrogenize.
HYDROGENIZE v. to hydrogenate, also HYDROGENISE.
HYDROKINETICShydrokinetics n. (Physics) The branch of physics concerned with the movement of fluids.
HYDROKINETICS n. the study of the motion of fluids.
HYDROMAGNETIChydromagnetic adj. Of or pertaining to hydromagnetics.
HYDROMAGNETIC adj. relating to hydromagnetics, a branch of mathematical physics dealing with interactions between an electricity-conducting fluid (such as an ionized gas) and a magnetic field.
HYDROQUINONEShydroquinones n. Plural of hydroquinone.
HYDROQUINONE n. another name for quinol.
HYDROXYLAMINEhydroxylamine n. (Inorganic chemistry) An explosive inorganic derivative of ammonia, NH2OH, used as a reducing agent…
hydroxylamine n. (Organic chemistry) Any organic derivative of this compound.
HYDROXYLAMINE n. a colorless odorless nitrogenous base that resembles ammonia in its reactions.
HYDROZINCITEShydrozincites n. Plural of hydrozincite.
HYDROZINCITE n. a monoclinic basic carbonate of zinc that is a secondary mineral occurring as light-coloured crusts on zinc deposits.
NONHEREDITARYnonhereditary adj. Not hereditary; not passed down by inheritance.
non-hereditary adj. Alternative form of nonhereditary.
NONHEREDITARY adj. not hereditary.
PYRITOHEDRONSpyritohedrons n. Plural of pyritohedron.
PYRITOHEDRON n. a pentagonal dodecahedron.
THERMODYNAMICthermodynamic adj. Of, or relating to the conversion of heat into other forms of energy.
thermodynamic adj. (Physics) Of, or relating to thermodynamics.
THERMODYNAMIC adj. of or relating to thermodynamics, also THERMODYNAMICAL.

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: 153 words
  • Scrabble in French: 25 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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