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List of 12-letter words containing

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There are 11 twelve-letter words containing D, I, O, R and 2Y

CYANOHYDRINScyanohydrins n. Plural of cyanohydrin.
CYANOHYDRIN n. any of various compounds containing both cyano and hydroxyl groups.
HYDROBIOLOGYhydrobiology n. (Biology) The study of the biology of the organisms that inhabit bodies of water.
HYDROBIOLOGY n. the study of aquatic organisms.
HYDRODYNAMIChydrodynamic adj. (Physics) Of, or relating to the science of hydrodynamics.
hydrodynamic adj. Operated by the force of water in motion.
HYDRODYNAMIC adj. of, relating to, or involving principles of hydrodynamics, also HYDRODYNAMICAL.
HYDRONICALLYhydronically adv. In terms of, or by means of, hydronics.
HYDRONIC adv. pertaining to heating and cooling by water.
HYDROXYZINEShydroxyzines n. Plural of hydroxyzine.
HYDROXYZINE n. a compound used as an antihistamine and tranquilizer.
HYPERTHYROIDhyperthyroid adj. Of or pertaining to hyperthyroidism.
HYPERTHYROID n. one affected with hyperthyroidism.
HYPOTHYROIDSHYPOTHYROID n. someone suffering from hypothyroidism.
IDIOSYNCRASYidiosyncrasy n. A behavior or way of thinking that is characteristic of a person.
idiosyncrasy n. A language or behaviour that is particular to an individual or group.
idiosyncrasy n. (Medicine) A peculiar individual reaction to a generally innocuous substance or factor.
PYRAMIDOLOGYpyramidology n. The study of pyramids (especially the Egyptian pyramids) from a supernatural or new-age perspective…
PYRAMIDOLOGY n. the study of the Egyptian pyramids.
RHYTIDECTOMYrhytidectomy n. (Surgery) Plastic surgery to reduce the visible signs of aging in the face by removing wrinkles.
RHYTIDECTOMY n. the surgical removal of wrinkles.
TYROGLYPHIDSTYROGLYPHID n. a mite of the genus Tyroglyphus, including the cheesemite and the flour-mite.

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: 67 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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