IPA: //sʌbˈlɪtərəl//
KK: /sʌbˈlɪtərəl/
Relating to the area between the low tide line and the continental shelf, or to organisms living just below the low tide level.
The sublittoral zone is home to many unique marine species.
The area in a body of water that is deeper than the littoral zone, typically found between the low tide mark and the continental shelf.
The marine biologist studied the diverse ecosystems found in the sublittoral zone.
Sublittoral → It is formed from "sub-" (meaning under) and "littoral" (from Latin "littoralis", meaning of the shore). The word describes the area that is located under the shore or near the shore of a body of water.
Think of being 'under' ('sub-') the 'shore' ('littoral') — that's why sublittoral refers to the area just below the shore.