(n.) Any elevated object on land which serves as a guide to mariners; a beacon; a landmark visible from the sea, as a hill, a tree, a steeple or the like.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). seamark. Retrieved September 20, 2026, from http://smartdefine.org/seamark/definitions/2059500 |
| Chicago | Webster's. 2011. "seamark" http://smartdefine.org/seamark/definitions/2059500 (accessed September 20, 2026). |
| Harvard | Webster's 2011, seamark, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/seamark/definitions/2059500>. |
| MLA | Webster's. "seamark" 28 May 2011. Web. 20 September 2026. <http://smartdefine.org/seamark/definitions/2059500> |