abyssopelagic
n. C2 Proficiency abyssopelag·ic
n. the very deep part of the ocean where very little light reaches. It is so dark that most animals there have special ways to hide or catch food.
n. the deep ocean zone extending from 4,000 to 6,000 meters where sunlight does not penetrate. Characterised by extreme pressure and near-total darkness.
Many strange creatures live in the abyssopelagic zone.
Scientists use special submersibles to study the abyssopelagic zone, where the pressure is hundreds of times greater than at sea level.
The abyssopelagic zone remains one of the least explored regions on Earth, home to bioluminescent organisms that have evolved to survive in perpetual darkness and crushing pressure.