bathyal.

Relating to ocean depths generally corresponding to the continental slope, between the shelf and deeper abyssal regions.

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Words that belong together

• bathyal zone
• bathyal fauna

On the page

The vehicle descended into the bathyal zone as daylight vanished.

Bathyal fauna gathered around the exposed rock wall.

Usage notes

Primary category: environment. Forms: Normally non-gradable as a seasonal, material, ecological, or geographic relation; comparison requires a measurable or descriptive basis. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings.