abyssalpelagic

adjective
abys·​sal·​pelagic
variants: or less commonly abyssopelagic \ ə¦bi(ˌ)sō + ⸗¦⸗⸗ \

Definition of abyssalpelagic

: of, relating to, or occurring in the open water of the abyssal zone

First Known Use of abyssalpelagic

1844, in the meaning defined above

History and Etymology for abyssalpelagic

abyssal or abyss + -o- + pelagic

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