Sea Monster
From BiblePortal Wikipedia
Fausset's Bible Dictionary [1]
Lamentations 4:3. Τannin , margin "sea calves." Whales and other cetacean monsters are mammalian. Even they give "the breast" to their young; but the Jewish women in the siege, so desperate was their misery, ate theirs ( Lamentations 4:10). Τannin is used vaguely for any great monster of the deep. True whales are occasionally seen in the Mediterranean.
Holman Bible Dictionary [2]
Lamentations 4:3Dragon
Webster's Dictionary [3]
Any large sea animal.
Morrish Bible Dictionary [4]
See MONSTER.