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There are 20 fifteen-letter words containing 2A, E, H, R and 3T

ANTITHEORETICALantitheoretical adj. Opposing theory.
ANTITHEORETICAL adj. opposed to the theoretical.
AUTHORITATIVELYauthoritatively adv. In an authoritative manner, being worthy of trust.
AUTHORITATIVE adv. having or proceeding from authority.
CATHETERISATIONcatheterisation n. Alternative spelling of catheterization.
CATHETERISATION n. the process of catheterising, also CATHETERIZATION.
CATHETERIZATIONcatheterization n. The procedure of introducing a catheter.
CATHETERIZATION n. the use of or introduction of a catheter (as in or into the bladder, trachea, or heart), also CATHETERISATION.
CHEMOATTRACTANTchemoattractant n. A substance inducing positive chemotaxis in motile cells.
CHEMOATTRACTANT n. a chemical which provokes a chemotactic movement of e.g. cells or bacteria towards its area of highest concentration.
EARTHSHATTERINGearthshattering adj. Earthshaking.
earth-shattering adj. Alternative spelling of earthshattering.
EARTHSHATTERING adj. of great importance or consequence.
KATATHERMOMETERkatathermometer n. Alternative spelling of kata thermometer.
kata-thermometer n. Alternative spelling of kata thermometer.
Kata-thermometer n. Alternative spelling of kata thermometer.
METATHEORETICALmetatheoretical adj. Of or pertaining to metatheory, the theory of theories.
METATHEORETICAL adj. relating to metatheory.
STADTHOLDERATESstadtholderates n. Plural of stadtholderate.
STADTHOLDERATE n. the office of stadtholder, also STADHOLDERATE, STADHOLDERSHIP, STADTHOLDERSHIP.
STRAIGHTJACKETSSTRAIGHTJACKET n. a straitjacket.
TECTIBRANCHIATEtectibranchiate adj. (Zoology, obsolete) Having the gills covered by the mantle; of or relating to the former order Tectibranchiata.
tectibranchiate n. Any tectibranchiate mollusk.
TECTIBRANCHIATE adj. of a like a tectibranch, any member of the Tectibranchiata, molluscs including sea-slugs.
TETARTOHEDRALLYTETARTOHEDRAL adv. having one fourth the number of planes required by complete symmetry.
TETRABRANCHIATEtetrabranchiate adj. (Zoology) Of or relating to the Tetrabranchiata; having four gills.
tetrabranchiate n. (Zoology) Any of the Tetrabranchiata.
TETRABRANCHIATE n. any mollusc belonging to the Tetrabranchia, with four gills.
TETRAETHYLLEADStetraethyl␣leads n. Plural of tetraethyl lead.
TETRAETHYLLEAD n. a colourless oily insoluble liquid formerly used in petrol to prevent knocking.
TETRAMETHYLLEADtetramethyllead n. (Organic chemistry) A compound with chemical formula C4H12Pb, used as an antiknock additive for gasoline.
TETRAMETHYLLEAD n. a volatile poisonous liquid used esp. formerly as an antiknock agent.
THALATTOCRACIESthalattocracies n. Plural of thalattocracy.
THALATTOCRACY n. sovereignty of the seas, also THALASSOCRACY.
THAUMATOLATRIESTHAUMATOLATRY n. the worship of miracles or wonders.
THEATRICALITIEStheatricalities n. Plural of theatricality.
THEATRICALITY n. the state of being theatrical.
THIOBARBITURATEthiobarbiturate n. (Medicine) Any compound obtained from a barbiturate by the formal substitution of an oxygen atom by one of sulfur.
THIOBARBITURATE n. a salt of thiobarbituric acid similar in effect to a barbiturate.
UNAUTHORITATIVEunauthoritative adj. Not authoritative.
UNAUTHORITATIVE adj. not authoritative.

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: 123 words
  • Scrabble in French: 31 words
  • Scrabble in Spanish: 1 word
  • Scrabble in Italian: 43 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 5 words


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