[ pɪ'ladʒɪk ]
■ adjective
1》 relating to the open sea.
2》 (chiefly of fish) inhabiting the upper layers of the open sea.
↘(of a bird) inhabiting the open sea and returning to shore only to breed.
■ noun a ~ fish or bird.
Origin
C17: via L. from Gk pelagikos , from pelagios 'of the sea'.