Silurian

[ si-loor-ee-uhn, sahy- ]

/ sɪˈlʊər i ən, saɪ- /

adjective

of or relating to the Silures or their country.

Geology. noting or pertaining to a period of the Paleozoic Era, occurring from 425 to 405 million years ago, notable for the advent of air-breathing animals and terrestrial plants.

noun

Geology. the Silurian Period or System of rocks.

Origin of Silurian

First recorded in 1700–10; Silur(es) + -ian

OTHER WORDS FROM Silurian

post-Si·lu·ri·an, adjectivepre-Si·lu·ri·an, adjective, noun

Words nearby Silurian

Silone, siloxane, silt, siltstone, Silures, Silurian, silurid, silva, Silvadine, silvan, Silvana

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for Silurian

In this brief sketch it is quite impossible to relate the many changes of species and genera during the Silurian.
The Elements of Geology|William Harmon Norton
Snakes developed in the Silurian Era, some twenty million years ago.
Carmen Ariza|Charles Francis Stocking
Are not the beings of the Silurian and Devonian epoch prophecies of the forms which were evolved out of them?
Studies in the Out-Lying Fields of Psychic Science|Hudson Tuttle
We know as yet no Silurian animal that lived on the land or breathed air.
The Story of the Earth and Man|J. W. Dawson

The rocks of these two earlier periods are those of the Cambrian and Silurian groups.
The World's Greatest Books - Volume 15 - Science|Various

British Dictionary definitions for Silurian

Silurian

/ (saɪˈlʊərɪən) /

adjective

of, denoting, or formed in the third period of the Palaeozoic era, between the Ordovician and Devonian periods, which lasted for 25 million years, during which fishes first appeared

of or relating to the Silures

noun

the Silurian the Silurian period or rock system

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for Silurian

Silurian

[ sĭ-lur′ē-ən ]

The third period of the Paleozoic Era, from about 438 to 408 million years ago. During this time glaciers that formed during the late Ordovician melted, causing sea levels to rise. The first coral reefs, fish with jaws, and freshwater fish appeared, and jawless fish continued to spread rapidly. The first vascular plants also appeared, as did land invertebrates including relatives of spiders and centipedes. See Chart at geologic time.

单词	silurian
释义	Silurian [ si-loor-ee-uhn, sahy- ] / sɪˈlʊər i ən, saɪ- / adjective of or relating to the Silures or their country. Geology. noting or pertaining to a period of the Paleozoic Era, occurring from 425 to 405 million years ago, notable for the advent of air-breathing animals and terrestrial plants. noun Geology. the Silurian Period or System of rocks. Origin of Silurian First recorded in 1700–10; Silur(es) + -ian OTHER WORDS FROM Silurian post-Si·lu·ri·an, adjectivepre-Si·lu·ri·an, adjective, noun Words nearby Silurian Silone, siloxane, silt, siltstone, Silures, Silurian, silurid, silva, Silvadine, silvan, Silvana Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for Silurian In this brief sketch it is quite impossible to relate the many changes of species and genera during the Silurian. The Elements of Geology\|William Harmon Norton Snakes developed in the Silurian Era, some twenty million years ago. Carmen Ariza\|Charles Francis Stocking Are not the beings of the Silurian and Devonian epoch prophecies of the forms which were evolved out of them? Studies in the Out-Lying Fields of Psychic Science\|Hudson Tuttle We know as yet no Silurian animal that lived on the land or breathed air. The Story of the Earth and Man\|J. W. Dawson The rocks of these two earlier periods are those of the Cambrian and Silurian groups. The World's Greatest Books - Volume 15 - Science\|Various British Dictionary definitions for Silurian Silurian / (saɪˈlʊərɪən) / adjective of, denoting, or formed in the third period of the Palaeozoic era, between the Ordovician and Devonian periods, which lasted for 25 million years, during which fishes first appeared of or relating to the Silures noun the Silurian the Silurian period or rock system Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Scientific definitions for Silurian Silurian [ sĭ-lur′ē-ən ] The third period of the Paleozoic Era, from about 438 to 408 million years ago. During this time glaciers that formed during the late Ordovician melted, causing sea levels to rise. The first coral reefs, fish with jaws, and freshwater fish appeared, and jawless fish continued to spread rapidly. The first vascular plants also appeared, as did land invertebrates including relatives of spiders and centipedes. See Chart at geologic time. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
随便看	bippy biprism bipropellant bipyramid biquadrate biquadratic biquarterly biracial biradial biradical biramous biratnagar birch birchbark biting birch beer birchen bircher birch family birch partridge birch tar oil bird bird band birdbath birdbrain bird-brained