Cambrian

Cam·bri·an  (kmbr-n, km-)

adj.

1. Of or relating to Wales; Welsh.

2. Of or belonging to the geologic time, system of rocks, or sedimentary deposits of the first period of the Paleozoic Era, characterized by desert land areas, warm seas, and rapid early diversification of marine life resulting in the rise of almost all modern animal phyla. See Table at geologic time.

n.

1. A Welshman or Welshwoman.

2. The Cambrian Period.

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[From Medieval Latin Cambria, Wales, alteration of Cumbria from Welsh Cymry. Adj., sense 2, and n., sense 2, after Cambria.]

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Cambrian

Adjective

Geol of the period of geological time about 600 million years ago

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Cambrian  (kmbr-n, km-)

The first period of the Paleozoic Era, from about 540 to 505 million years ago. During this time warm seas and desert land areas were widespread, and animal life diversified rapidly during what is known as the Cambrian Explosion. See Chart at geologic time.

Thesaurus

Noun	1.	Cambrian - from 544 million to about 500 million years ago; marine invertebrates Cambrian period Paleozoic, Paleozoic era - from 544 million to about 230 million years ago
	2.	Cambrian - a native or resident of Wales Cymry, Welsh, Welshman Cambria, Cymru, Wales - one of the four countries that make up the United Kingdom of Great Britain and Northern Ireland; during Roman times the region was known as Cambria European - a native or inhabitant of Europe
Adj.	1.	Cambrian - of or relating to or characteristic of Wales or its people or their language; "the Welsh coast"; "Welsh syntax" Welsh