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 There are 12 fifteen-letter words containing A, 2E, H, 2R, T and U| ARCHAEBACTERIUM | • archaebacterium n. Any primitive bacteria-like organism in the kingdom Archaea. • archæbacterium n. (Rare) Alternative spelling of archaebacterium.
 • ARCHAEBACTERIUM n. any of the microorganisms comprising the archaea.
 |  | INTERBEHAVIOURS | • interbehaviours n. Plural of interbehaviour. • INTERBEHAVIOUR n. interaction between multiple individuals, also INTERBEHAVIOR.
 |  | MICROEARTHQUAKE | • microearthquake n. A very low-intensity earthquake, usually three or less on the Richter scale. • MICROEARTHQUAKE n. an earthquake of low intensity.
 |  | NONARCHITECTURE | • nonarchitecture n. That which is not architecture. • NONARCHITECTURE n. what is not architecture.
 |  | PSEUDOARTHROSES | • pseudoarthroses n. Plural of pseudoarthrosis. • PSEUDOARTHROSIS n. a joint formed by fibrous tissue bridging the gap between the two fragments of bone of an old fracture that have not united, also PSEUDARTHROSIS.
 |  | SOUTHEASTERNERS | • southeasterners n. Plural of southeasterner. |  | SUBSTRATOSPHERE | • substratosphere n. The area of the atmosphere directly below the stratosphere. • SUBSTRATOSPHERE n. the area of the atmosphere below the stratosphere.
 |  | THERMOREGULATED | • thermoregulated v. Simple past tense and past participle of thermoregulate. • THERMOREGULATE v. to regulate by means of heat.
 |  | THERMOREGULATES | • thermoregulates v. Third-person singular simple present indicative form of thermoregulate. • THERMOREGULATE v. to regulate by means of heat.
 |  | 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.
 |  | TREACHEROUSNESS | • treacherousness n. Treachery; the characteristic of being treacherous. • TREACHEROUSNESS n. the state of being treacherous.
 |  | TRUEHEARTEDNESS | • trueheartedness n. The quality of being true-hearted. • TRUEHEARTEDNESS n. the state of being truehearted.
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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: 201 wordsScrabble in French: 72 wordsScrabble in Spanish: 24 wordsScrabble in Italian: 41 wordsScrabble in German: no wordScrabble in Romanian: 39 words
 
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