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List of 12-letter words containing

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There are 10 twelve-letter words containing D, H, M, 2O, R and Y

HYDROFORMINGhydroforming n. (Engineering) A cost-effective way of shaping malleable metals into lightweight, stiff pieces by means…
hydroforming n. (Organic chemistry) The reaction of petroleum with hydrogen.
HYDROFORMING n. the catalytic reforming of petroleum to increase the proportion of aromatic and branched-chain hydrocarbons.
HYDROMETEORShydrometeors n. Plural of hydrometeor.
HYDROMETEOR n. a general term for the aqueous phenomena of the atmosphere, as rain, snow, sleet, hail.
HYDROMORPHIChydromorphic adj. Synonym of hydric (“requiring moisture”).
hydromorphic adj. (Soil science) Formed in the presence of an excess of water.
HYDROMORPHIC adj. developed in the presence of an excess of moisture which tends to suppress aerobic factors in soil-building.
HYDROTROPISMhydrotropism n. (Biology) The movement of a plant (or other organism) in response to water, either towards or away from water.
HYDROTROPISM n. growth in the direction of water.
HYDROXONIUMShydroxoniums n. Plural of hydroxonium.
HYDROXONIUM n. the obsolete name for the cation H3O+ derived from protonation of water.
MONOHYDRATEDmonohydrated adj. Hydrated with a single molecule of water.
MONOHYDRATED adj. like a monohydrate.
MONOHYDRATESmonohydrates n. Plural of monohydrate.
MONOHYDRATE n. a hydrate containing one molecule of water per molecule of the compound.
MONOHYDROGENmonohydrogen n. (Chemistry, in combination) A single hydrogen atom in a compound.
MONOHYDROGEN adj. designating compounds containing one hydrogen atom or ion for each combining radical or ion, e.g. disodium monohydrogen orthophosphate.
ORCHIDECTOMYorchidectomy n. Synonym of orchiectomy.
ORCHIDECTOMY n. excision of one or both testicles, also ORCHIECTOMY.
RHABDOMYOMASrhabdomyomas n. Plural of rhabdomyoma.
RHABDOMYOMA n. a tumour of striated muscle.

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: 65 words
  • Scrabble in French: 4 words
  • Scrabble in Spanish: no word
  • Scrabble in Italian: 1 word
  • Scrabble in German: no word
  • Scrabble in Romanian: no word


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