bathyal

9.9

Relating to the deep sea between about 200 and 2,000 meters where little light reaches

adjective
/ˈbæθiəl/

Specialized

: batial

The submarine descended into the bathyal zone, where sunlight barely penetrates.

Examples

The bathyal zone is home to many unique species.
Scientists study the unique organisms that inhabit the bathyal depths of the ocean.
Many deep-sea fish are adapted to survive in bathyal environments.
Researchers study bathyal ecosystems to understand marine biodiversity.
Many deep-sea fish are adapted to survive in bathyal environments.
Scientists study the unique organisms that inhabit the bathyal depths of the ocean.
The submarine descended into the bathyal zone, where sunlight barely penetrates.

Compounds

bathyal zone

Specialized

9.9

The part of the ocean between the shallow sea edge and the deep sea, about 200 to 2000 meters deep

bathyal district

Specialized

9.9

A steep part of the ocean floor 200 to 2000 meters deep

How Deep

hadal

Specialized

9.9

abyssal

Specialized

1 9.4

bathyal

Specialized

9.9

sublittoral

Specialized

9.9

littoral

1 8.4

Surface Forms

bathyal positive

Morphology

bathyal = bathy (opaque) = bathy + al

The combining form 'bathy-' is technical and not a familiar standalone English word, so learners are unlikely to infer the meaning of 'bathyal' from its parts.

Etymology

Bathyal comes from the Greek root bathys meaning 'deep' plus the ending -al that makes an adjective, so the word is about depth. That's why bathyal describes the deep parts of the sea far below the surface.