'Cambrian' definitions:

Definition of 'Cambrian'

adjective

Of or relating to or characteristic of Wales or its people or their language; "the Welsh coast"; "Welsh syntax" [syn: Welsh, Cambrian]

noun

From 544 million to about 500 million years ago; marine invertebrates [syn: Cambrian, Cambrian period]

noun

A native or resident of Wales [syn: Welshman, Welsh, Cambrian, Cymry]

From: GCIDE

Primordial \Pri*mor"di*al\, a. [L. primordialis, from primordium the first beginning; primus first + ordiri to begin a web, to begin: cf. F. primordial.]
1. First in order; primary; original; of earliest origin; as, primordial condition. "The primordial facts of our intelligent nature." --Sir W. Hamilton. [1913 Webster]
2. (Geol.) Of or pertaining to the lowest beds of the Silurian age, corresponding to the Acadian and Potsdam periods in American geology. It is called also Cambrian, and by many geologists is separated from the Silurian. [1913 Webster]
3. (Biol.) Originally or earliest formed in the growth of an individual or organ; as, a primordial leaf; a primordial cell. [1913 Webster]
Primordial utricle (Bot.), the interior lining of a young vegetable cell. [1913 Webster]

From: GCIDE

Cambrian \Cam"bri*an\, a.
1. (Geog.) Of or pertaining to Cambria or Wales. [1913 Webster]
2. (Geol.) Of or pertaining to the lowest subdivision of the rocks of the Silurian or Molluscan age; -- sometimes described as inferior to the Silurian. It is named from its development in Cambria or Wales. See the Diagram under Geology. [1913 Webster]

From: GCIDE