Definition of abyssopelagic in English:

abyssopelagic

adjective

Ecology
  • Designating a region of the open water of seas and oceans which is at great depth but away from the sea floor; (of an organism) living in such a region.

Origin

Mid 19th century. From post-classical Latin abyssus abyss + -o- + pelagic.

Pronunciation:

abyssopelagic

/əˌbɪsə(ʊ)pɪˈladʒɪk/