- (a.) Of or pertaining to Devon or Devonshire in England; as, the Devonian rocks, period or system.
- (n.) The Devonian age or formation.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). devonian. Retrieved September 26, 2026, from http://smartdefine.org/devonian/definitions/1997030 |
| Chicago | Webster's. 2011. "devonian" http://smartdefine.org/devonian/definitions/1997030 (accessed September 26, 2026). |
| Harvard | Webster's 2011, devonian, Smart Define, viewed 26 September, 2026, <http://smartdefine.org/devonian/definitions/1997030>. |
| MLA | Webster's. "devonian" 27 May 2011. Web. 26 September 2026. <http://smartdefine.org/devonian/definitions/1997030> |