Bible Dictionaries
Sea Devil

Webster's Dictionary

(1):

Any large cephalopod, as a large Octopus, or a giant squid (Architeuthis). See Devilfish.

(2):

The angler.

(3):

Any very large ray, especially any species of the genus Manta or Cepholoptera, some of which become more than twenty feet across and weigh several tons. See also Ox ray, under Ox.

Bibliography Information
Webster, Noah. Entry for 'Sea Devil'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​s/sea-devil.html. 1828.