noun
- Indicator consisting of a line at the highwater or low-water limits of the tides. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). tidemark. Retrieved September 20, 2026, from http://smartdefine.org/tidemark/definitions/1209003 |
| Chicago | WordNet. 2010. "tidemark" http://smartdefine.org/tidemark/definitions/1209003 (accessed September 20, 2026). |
| Harvard | WordNet 2010, tidemark, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/tidemark/definitions/1209003>. |
| MLA | WordNet. "tidemark" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/tidemark/definitions/1209003> |