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There are 18 fifteen-letter words containing A, E, M, O, 3R and T

AUTOTRANSFORMERautotransformer n. (Electrical engineering) A transformer with a single winding, its output being taken from taps.
AUTOTRANSFORMER n. a transformer in which the primary and secondary coils have part or all of their turns in common.
CHROMATOGRAPHERchromatographer n. A person skilled in chromatography or who operates a chromatograph.
CHROMATOGRAPHER n. one who uses a chromatograph.
ERGATANDROMORPHergatandromorph n. (Biology) An andromorph ant that is also a worker.
ERGATANDROMORPH n. an ant combining characteristics of males and workers.
GRANDMOTHERLIERGRANDMOTHERLY adj. like a grandmother.
IRREFORMABILITYirreformability n. The quality of being irreformable; absence of potential for reform.
IRREFORMABILITY n. the state of being irreformable.
MACROSTRUCTURESmacrostructures n. Plural of macrostructure.
MACROSTRUCTURE n. the structure (as of metal, a body part, or the soil) revealed by visual examination with little or no magnification.
MARGARITIFEROUSmargaritiferous adj. Producing pearls.
MARGARITIFEROUS adj. pearl-bearing.
NARCOTERRORISMSNARCOTERRORISM n. drug-related terrorism.
RADIOMICROMETERradiomicrometer n. A device used to measure small changes in radiant heat, or in temperature.
RADIOMICROMETER n. an instrument for detecting and measuring small amounts of radiation, usually by a sensitive thermocouple.
RECHROMATOGRAPHrechromatograph v. To chromatograph again.
RECHROMATOGRAPH v. to do by chromatograph again.
REFRACTOMETRIESrefractometries n. Plural of refractometry.
REFRACTOMETRY n. measurement by refractometer.
SPERMATORRHOEASspermatorrhoeas n. Plural of spermatorrhoea.
SPERMATORRHOEA n. involuntary seminal discharge without orgasm, also SPERMATORRHEA.
TERRITORIALISMSterritorialisms n. Plural of territorialism.
TERRITORIALISM n. a social system in which the landowning class is dominant, organized on a territorial basis.
THERMOBAROGRAPHthermobarograph n. An instrument for recording simultaneously the pressure and temperature of a gas; a combined thermograph…
THERMOBAROGRAPH n. a device that simultaneously records the temperature and pressure of the atmosphere.
THERMOBAROMETERthermobarometer n. (Obsolete, physics) An instrument that measured altitudes via the boiling point of water.
thermobarometer n. (Geology) A mineral used to estimate temperature and pressure in the rocks during its formation.
THERMOBAROMETER n. an apparatus that provides an accurate measurement of pressure by observation of the change in the boiling point of a fluid.
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.
ULTRAMARATHONERultramarathoner n. (Athletics) Someone who participates in ultramarathons.
ULTRAMARATHONER n. one who runs an ultramarathon, a footrace longer than a marathon.
ULTRAMICROMETERultramicrometer n. A very precise micrometer.
ULTRAMICROMETER n. a micrometer for measuring extremely small distances.

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: 189 words
  • Scrabble in French: 64 words
  • Scrabble in Spanish: 198 words
  • Scrabble in Italian: 216 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 244 words


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