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.

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.

3. (Biol.) Originally or earliest formed in the growth of an individual or organ; as, a primordial leaf; a primordial cell.

Primordial utricle (Bot.), the interior lining of a young vegetable cell.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Cambrian \Cam"bri*an\, a.

1. (Geog.) Of or pertaining to Cambria or Wales.

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.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Cambrian \Cam"bri*an\, n.

1. A native of Cambria or Wales.

2. (Geol.) The Cambrian formation.

Source: Webster's Revised Unabridged Dictionary (1913)