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 There are 7 fifteen-letter words containing A, E, 2H, I, 2N and R| DIPHENHYDRAMINE | • diphenhydramine n. (Pharmacology) An antihistamine and anticholinergic drug that blocks the effect of histamine at H1 receptor… • DIPHENHYDRAMINE n. a type of antihistamine.
 |  | ETHNOHISTORIANS | • ethnohistorians n. Plural of ethnohistorian. • ETHNOHISTORIAN n. a student of ethnohistory.
 |  | NIGHTMARISHNESS | • nightmarishness n. The state or condition of being nightmarish. • NIGHTMARISH n. like a nightmare, also NIGHTMARY.
 |  | NONHIERARCHICAL | • nonhierarchical adj. Classified or arranged so that a group or person has the same authority as everyone else; not hierarchical. • NONHIERARCHICAL adj. not hierarchical.
 |  | ORNITHODELPHIAN | • ORNITHODELPHIAN adj. of or like the Ornithodelphia, monotremes, also ORNITHODELPHIC, ORNITHODELPHOUS. |  | RHINENCEPHALONS | • RHINENCEPHALON n. the olfactory lobe of the brain. |  | THANKWORTHINESS | • thankworthiness n. The quality or state of being thankworthy. • THANKWORTHINESS n. the state of being thankworthy.
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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 1Word.ws and WikWik.org.
 
 See this list for:English Wiktionary: 83 wordsScrabble in French: 8 wordsScrabble in Spanish: 15 wordsScrabble in Italian: 8 wordsScrabble in German: no wordScrabble in Romanian: 1 word
 
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