Silurian

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

Definition of Silurian 

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

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

Other Words from Silurian

Silurian noun

First Known Use of Silurian

1708, in the meaning defined at sense 1

History and Etymology for Silurian

Latin Silures

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Time Traveler for Silurian

The first known use of Silurian was in 1708

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