Definitions

1. adjective

Relating to or characteristic of the Silurian period, a geologic period from 443 to 416 million years ago.

“The fossil found in the rock was siluric, dating back to the early Silurian period.”

2. noun

A member of a Silurian, a geologic period or a person or thing belonging to that period.

“The siluric rocks in the area date back to the Silurian period.”