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 There are 2 fifteen-letter words containing A, E, H, M, 3R and U| THERMOREGULATOR | • thermoregulator n. Any organism that carries out thermoregulation. • thermoregulator n. A device that assists with thermoregulation, e.g. for a newborn infant. • THERMOREGULATOR n. a device, such as a thermostat, for the regulation of temperature. |  | ULTRAMARATHONER | • ultramarathoner n. (Athletics) Someone who participates in ultramarathons. • ULTRAMARATHONER n. one who runs an ultramarathon, a footrace longer than a marathon. |  
 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: 24 words
 - Scrabble in French: no word
 - Scrabble in Spanish: 34 words
 - Scrabble in Italian: 5 words
 - Scrabble in German: no word
 - Scrabble in Romanian: 2 words
 
 
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