adjective Si·lu·ri·an \sī-ˈlu̇r-ē-ən, sə-\

Definition of Silurian

  1. 1 :  of or relating to the Silures or their place of habitation

  2. 2 :  of, relating to, or being a period of the Paleozoic era between the Ordovician and Devonian or the corresponding system of rocks marked by numerous eurypterid crustaceans and the appearance of the first land plants — see geologic time table



Origin and Etymology of silurian

Latin Silures

First Known Use: 1708

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