Definition of silurian

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  • silurian is a valid Scrabble US word with a point value of 8
  • silurian is a valid Scrabble UK word with a point value of 8
  • silurian is not a valid Words with friends word!

Definition of silurian

  • from 425 million to 405 million years ago; first air-breathing animals (noun)

    Synonyms

    1. silurian period

See definition of silurian in Merriam Webster