| n. | 1. | |
| 1. | An aquatic animal, described in the book of Job, ch. xli., and mentioned in other passages of Scripture. | |
| 2. | The whale, or a great whale. |
| Noun | 1. | leviathan - the largest or most massive thing of its kind; "it was a leviathan among redwoods"; "they were assigned the leviathan of textbooks" |
| 2. | leviathan - monstrous sea creature symbolizing evil in the Old Testament |