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 List of 12-letter words containing •••••••Click to add a ninth letter
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 There are 5 twelve-letter words containing D, G, H, N, 2O, R and Y| HYDROFORMING | • hydroforming 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. |  | HYDROGENATOR | • hydrogenator n. (Chemistry) A device that hydrogenates. • HYDROGENATOR n. an agent that hydrogenates. |  | MONOHYDROGEN | • monohydrogen 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. |  | ODONTOGRAPHY | • odontography n. A scientific description of the teeth. • ODONTOGRAPHY n. a description or history of teeth. |  | OXYHYDROGENS | • OXYHYDROGEN n. a mixture of hydrogen and oxygen used to provide an intense flame for welding. |  
 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. 
 See this list for:- English Wiktionary: 23 words
 - Scrabble in French: 3 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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