abyssalpelagic

adjective

abys·​sal·​pelagic

variants or less commonly abyssopelagic

ə¦bi(ˌ)sō + ⸗¦⸗⸗

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

Word History

Etymology

abyssal or abyss + -o- + pelagic

First Known Use

1844, in the meaning defined above

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