(a.) Of or pertaining to the deeper parts of the sea; as, a deep-sea line (i. e., a line to take soundings at a great depth); deep-sea lead; deep-sea soundings, explorations, etc.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). deep-sea. Retrieved September 23, 2026, from http://smartdefine.org/deep-sea/definitions/1995246 |
| Chicago | Webster's. 2011. "deep-sea" http://smartdefine.org/deep-sea/definitions/1995246 (accessed September 23, 2026). |
| Harvard | Webster's 2011, deep-sea, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/deep-sea/definitions/1995246>. |
| MLA | Webster's. "deep-sea" 27 May 2011. Web. 23 September 2026. <http://smartdefine.org/deep-sea/definitions/1995246> |