Silurian rock Synonyms

We can't find synonyms for the phrase "Silurian rock", but we have synonyms for terms, you can combine them.

Silurian Synonyms

Silurian period

Rock Synonyms

SR abbreviation

SR is an abbreviation for Silurian Rock

What does SR stand for?

SR stands for "Silurian Rock"

Definitions for Silurian

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

Definitions for Rock

(noun) a usually valuable stone cut and polished for ornament
(verb) to make a series of unsteady side -to-side motions
(verb) to swing unsteadily back and forth or from side to side