Definition of Silurian in English:

Share this entry


Pronunciation: /səˈlo͝orēən/
Pronunciation: /sīˈlo͝orēən/


1Relating to or denoting the third period of the Paleozoic era, between the Ordovician and Devonian periods.
Example sentences
  • Conventionally, the Cambrian, Ordovician, and Silurian systems constitute the Lower Palaeozoic and the Devonian, Carboniferous, and Permian comprise the Upper Palaeozoic.
  • These are overlain by low-grade metamorphosed sediments and volcanics of Ordovician and Silurian age.
  • The so-called ophiolitic relics at the Moldanubian-Brunovistulian boundary show Early Ordovician to Silurian crystallization ages.
1.1 (as noun the Silurian) The Silurian period or the system of rocks deposited during it.

The Silurian lasted from about 439 million to 409 million years ago. The first true fish and land plants appeared during the period, and the end of the period is marked by the climax of the Caledonian orogeny.


Early 18th century: from Latin Silures (denoting a people of ancient southeastern Wales) + -ian.

Words that rhyme with Silurian

Arthurian, Ben-Gurion, centurion, durian, holothurian, Khachaturian, Ligurian, Missourian, tellurian

For editors and proofreaders

Syllabification: Si·lu·ri·an

Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.