'Sea god' definitions:

Definition of 'sea god'

From: WordNet
noun
A deity that personifies the sea and is usually believed to live in or to control the sea

Definition of 'Sea god'

From: GCIDE
  • Sea god \Sea" god`\ A marine deity; a fabulous being supposed to live in, or have dominion over, the sea, or some particular sea or part of the sea, as Neptune. [1913 Webster]