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There are 10 fifteen-letter words beginning with TET

TETARTOHEDRALLYTETARTOHEDRAL adv. having one fourth the number of planes required by complete symmetry.
TETARTOHEDRISMStetartohedrisms n. Plural of tetartohedrism.
TETARTOHEDRISM n. the state of being tetartohedral, having one fourth the number of planes required by complete symmetry.
TETRABASICITIESTETRABASICITY n. the state of being tetrabasic.
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.
TETRAGRAMMATONSTETRAGRAMMATON n. a sacred word or acronym of four letters.
TETRAHYDROFURANtetrahydrofuran n. (Organic chemistry) A heterocyclic ether having a five-membered ring with four carbon atoms and one…
TETRAHYDROFURAN n. a flammable liquid ether derived from furan and used as a solvent and as an intermediate in organic synthesis.
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.
TETRASPORANGIUMtetrasporangium n. (Botany) A sporangium that produces tetraspores.
TETRASPORANGIUM n. the sporangium in which tetraspores are formed.
TETRASYLLABICALTETRASYLLABICAL adj. having four syllables, also TETRASYLLABIC.

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 1Word.ws and WikWik.org.

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See this list for:

  • English Wiktionary: 78 words
  • Scrabble in French: 1 word
  • Scrabble in Spanish: no word
  • Scrabble in Italian: 4 words
  • Scrabble in German: no word
  • Scrabble in Romanian: 15 words


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