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 There are 7 twelve-letter words containing D, E, H, 2N, O, R and Y| ANTIHYDROGEN | • antihydrogen 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.
 |  | HANDYPERSONS | • handypersons n. Plural of handyperson. • HANDYPERSON n. a person good at manual crafts.
 |  | HETERODYNING | • heterodyning v. Present participle of heterodyne. • HETERODYNE v. to change the frequency of (a signal) by imposing on a continuous wave another of slightly different length to produce beats.
 |  | HYDROQUINONE | • hydroquinone n. (Organic chemistry) The diphenol para-dihydroxy benzene, used as a mild reducing agent in photographic… • HYDROQUINONE n. another name for quinol.
 |  | 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.
 |  | SYNCHRONISED | • synchronised adj. Operating in unison, in a state of synchronisation. • synchronised v. Simple past tense and past participle of synchronise.
 • SYNCHRONISE v. to cause to happen at the same time, also SYNCHRONIZE.
 |  | SYNCHRONIZED | • synchronized adj. Having attained synchronization, together, coordinated, combined. • synchronized v. Simple past tense and past participle of synchronize.
 • SYNCHRONIZE v. to cause to happen at the same time, also SYNCHRONISE.
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 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: 27 wordsScrabble in French: 5 wordsScrabble in Spanish: no wordScrabble in Italian: no wordScrabble in German: no wordScrabble in Romanian: no word
 
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