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List of 12-letter words containing

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There are 17 twelve-letter words containing A, D, G, H, 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.
CARDIOGRAPHYcardiography n. (Medicine) The graphic recording of the movement, or other function of the heart as a means of diagnosis.
CARDIOGRAPHY n. the making of cardiographs.
DYNAMOGRAPHSdynamographs n. Plural of dynamograph.
DYNAMOGRAPH n. an instrument for recording mechanical forces.
HEADSTRONGLYheadstrongly adv. In a headstrong manner.
HEADSTRONG adv. impetuous.
HYDROGENASEShydrogenases n. Plural of hydrogenase.
HYDROGENASE n. an enzyme that catalyzes hydrogen formation in certain microorganisms.
HYDROGENATEDhydrogenated v. Simple past tense and past participle of hydrogenate.
hydrogenated adj. That has been treated, or reacted with hydrogen; especially describing a saturated fat so obtained from…
HYDROGENATE v. to combine or treat with hydrogen.
HYDROGENATEShydrogenates v. Third-person singular simple present indicative form of hydrogenate.
HYDROGENATE v. to combine or treat with hydrogen.
HYDROGENATORhydrogenator n. (Chemistry) A device that hydrogenates.
HYDROGENATOR n. an agent that hydrogenates.
HYDROGRAPHERhydrographer n. A scientist whose speciality is hydrography.
HYDROGRAPHER n. a student of hydrography.
HYDROGRAPHIChydrographic adj. Of or pertaining to hydrography.
HYDROGRAPHIC adj. relating to hydrography, the study of bodies of water, also HYDROGRAPHICAL.
HYDROLOGICALhydrological adj. Of or pertaining to hydrology.
HYDROLOGICAL adj. relating to hydrology, also HYDROLOGIC.
HYDROMASSAGEhydromassage n. A therapeutic massage in which bubbles of air and jets of water are pumped through a bath in which the recipient lies.
hydromassage v. (Transitive) To massage in this way.
HYDROPLANINGhydroplaning v. Present participle of hydroplane.
hydroplaning n. (Automotive, US, Canada) The loss of contact with the road because of surface water. The act of aquaplaning.
HYDROPLANE v. to travel by hydroplane, a light, flat-bottomed motorboat.
ODONTOGRAPHYodontography n. A scientific description of the teeth.
ODONTOGRAPHY n. a description or history of teeth.
PARAHYDROGENparahydrogen n. (Physics) The form of the hydrogen molecule (H2) in which the two nuclei have antiparallel spin; about…
PARAHYDROGEN n. a spin isomer of hydrogen.
PSEUDOGRAPHYpseudography n. False writing; forgery.
pseudography n. Incorrect spelling.
PSEUDOGRAPHY n. unsatisfactory spelling.
SHADOWGRAPHYshadowgraphy n. The creation of shadowgraph images.
shadowgraphy n. The selective blocking of a light source in order to produce the silhouettes of animals, etc. as a form…
SHADOWGRAPHY n. the making of images by shadowgraph.

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: 66 words
  • Scrabble in French: 15 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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