This is the 12744th most frequent Spanish word.
oceánicas
Relating to the ocean.
Here, 'oceánicas' is used as an adjective to describe the type of currents, specifically those related to the ocean.
Las corrientes oceánicas influyen en el clima global.
The oceanic currents influence the global climate.
In this sentence, 'oceánicas' describes the species that are marine or living in the ocean.
Las especies oceánicas están adaptadas a condiciones extremas.
Oceanic species are adapted to extreme conditions.
Here, 'oceánicas' modifies 'fosas', indicating trenches associated with the ocean.