Strong's Concordance

Original word: עֲקַלָּתוֹן
Transliteration: aqallathon
Definition (short): twisted
Definition (full): tortuous

NAS Exhaustive Concordance

Word Origin: from aqal
Definition: crooked
NASB Translation: twisted (1).
NAS Exhaustive Concordance of the Bible with Hebrew-Aramaic and Greek Dictionaries.
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Strong's Exhaustive Concordance

From aqal; tortuous -- crooked.

see HEBREW aqal

KJV: In that day the LORD with his sore and great and strong sword shall punish leviathan the piercing serpent, even leviathan that crooked serpent; and he shall slay the dragon that is in the sea.
NASB: In that day the LORD will punish Leviathan the fleeing serpent, With His fierce and great and mighty sword, Even Leviathan the twisted serpent; And He will kill the dragon who lives in the sea.