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There are 12 fifteen-letter words containing A, 2E, H, 2R, T and U

ARCHAEBACTERIUMarchaebacterium 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.
INTERBEHAVIOURSinterbehaviours n. Plural of interbehaviour.
INTERBEHAVIOUR n. interaction between multiple individuals, also INTERBEHAVIOR.
MICROEARTHQUAKEmicroearthquake n. A very low-intensity earthquake, usually three or less on the Richter scale.
MICROEARTHQUAKE n. an earthquake of low intensity.
NONARCHITECTUREnonarchitecture n. That which is not architecture.
NONARCHITECTURE n. what is not architecture.
PSEUDOARTHROSESpseudoarthroses 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.
SOUTHEASTERNERSsoutheasterners n. Plural of southeasterner.
SUBSTRATOSPHEREsubstratosphere n. The area of the atmosphere directly below the stratosphere.
SUBSTRATOSPHERE n. the area of the atmosphere below the stratosphere.
THERMOREGULATEDthermoregulated v. Simple past tense and past participle of thermoregulate.
THERMOREGULATE v. to regulate by means of heat.
THERMOREGULATESthermoregulates v. Third-person singular simple present indicative form of thermoregulate.
THERMOREGULATE v. to regulate by means of heat.
THERMOREGULATORthermoregulator 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.
TREACHEROUSNESStreacherousness n. Treachery; the characteristic of being treacherous.
TREACHEROUSNESS n. the state of being treacherous.
TRUEHEARTEDNESStrueheartedness n. The quality of being true-hearted.
TRUEHEARTEDNESS n. the state of being truehearted.

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.

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See this list for:

  • English Wiktionary: 201 words
  • Scrabble in French: 72 words
  • Scrabble in Spanish: 24 words
  • Scrabble in Italian: 41 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 39 words


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