Leviathan

Leviathan - (Easton's Bible Dictionary)

A transliterated Hebrew word (livyathan), meaning "twisted," "coiled." In Job 3:8, Revised Version, and marg. of Authorized Version, it denotes the dragon which, according to Eastern tradition, is an enemy of light; in 41:1 the crocodile is meant; in Ps. 104:26 it "denotes any large animal that moves by writhing or wriggling the body, the whale, the monsters of the deep." This word is also used figuratively for a cruel enemy, as some think "the Egyptian host, crushed by the divine power, and cast on the shores of the Red Sea" (Ps. 74:14). As used in Isa. 27:1, "leviathan the piercing [R.V. swift'] serpent, even leviathan that crooked [R.V. marg. winding'] serpent," the word may probably denote the two empires, the Assyrian and the Babylonian.

Leviathan - (Webster's 1828 Dictionary)

LEVI'ATHAN, n. [Heb.]

1. An aquatic animal, described in Job 41, and mentioned in other passages of Scripture. In Isaiah, it is called the crooked serpent. It is not agreed what animal is intended by the writers, whether the crocodile, the whale, or a species of serpent.

2. The whale, or a great whale.