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 There are 9 fifteen-letter words containing H, I, M, N, S, 2T and Y| ACTINOCHEMISTRY | • actinochemistry n. The science of chemistry and actinism. • ACTINOCHEMISTRY n. another name for photochemistry.
 |  | ANTIARRHYTHMICS | • antiarrhythmics n. Plural of antiarrhythmic. • ANTIARRHYTHMIC n. a drug to prevent cardiac arrhythmia.
 |  | METHYLTHIONINES | • METHYLTHIONINE n. as in methylthionine chloride, a dark green dye used as a stain, antiseptic etc. |  | METHYLXANTHINES | • methylxanthines n. Plural of methylxanthine. • METHYLXANTHINE n. a methylated xanthine derivative, such as caffeine, theobromine, or theophylline.
 |  | MYTHOLOGISATION | • mythologisation n. Alternative form of mythologization. • MYTHOLOGISATION n. the process of mythologising, also MYTHOLOGIZATION.
 |  | POLYSYNTHETISMS | • POLYSYNTHETISM n. the state of being polysynthetic. |  | THIRTYSOMETHING | • thirtysomething n. A tricenarian: a person in their thirties, a person aged between 30 and 39 years (inclusive). • thirtysomething adj. Between 30 and 39 years of age.
 • thirtysomething adj. Between 30 and 39 in number.
 |  | TRIMETHYLAMINES | • trimethylamines n. Plural of trimethylamine. • TRIMETHYLAMINE n. a gas obtainable from herring-brine, corresponding to ammonia with methyl replacing all the hydrogen.
 |  | TWENTYSOMETHING | • twentysomething n. A person whose age is between twenty and twenty-nine years, inclusive; someone in their twenties. • twentysomething num. Between twenty and thirty.
 • twenty-something num. Alternative form of twentysomething.
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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: 73 wordsScrabble in French: 8 wordsScrabble in Spanish: no wordScrabble in Italian: no wordScrabble in German: no wordScrabble in Romanian: no word
 
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