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There are 5 thirteen-letter words ending with ONTIAN

cryptodontianeucynodontianHellespontianiguanodontiansphenodontian

5 definitions found

  • cryptodontian — n. Any dicynodont therapsid of the clade Cryptodontia.
  • eucynodontian — n. Any cynodont therapsid of the infraorder Eucynodontia.
  • Hellespontian — adj. Of or pertaining to Hellespont.
  • iguanodontian — n. (Zoology) Any herbivorous dinosaur of the clade Iguanodontia.
  • sphenodontian — n. Any lizard-like reptile in the rhynchocephalian suborder Sphenodontia…
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