- (a.) 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.
- (a.) First in order; primary; original; of earliest origin; as, primordial condition.
- (n.) A first principle or element.
- (a.) Originally or earliest formed in the growth of an individual or organ; as, a primordial leaf; a primordial cell.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). primordial. Retrieved September 23, 2026, from http://smartdefine.org/primordial/definitions/2049231 |
| Chicago | Webster's. 2011. "primordial" http://smartdefine.org/primordial/definitions/2049231 (accessed September 23, 2026). |
| Harvard | Webster's 2011, primordial, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/primordial/definitions/2049231>. |
| MLA | Webster's. "primordial" 27 May 2011. Web. 23 September 2026. <http://smartdefine.org/primordial/definitions/2049231> |