Strongs: H3882

H3882 @ לויתן livyâthân liv-yaw-thawn' From H3867 a wreathed {animal} that {is} a serpent (especially the crocodile or some other large sea monster); figuratively the constellation of the dragon; also as a symbol of Babylon: - {leviathan} mourning.

Job:3:8 Job:41:1 Psalms:74:14 Psalms:104:26 Isaiah:27:1