Nis'roch. (the great eagle). An idol of Nineveh, in whose temple, Sennacherib was worshipping, when assassinated by his sons, Adrammelech and Shizrezer. 2 Kings 19:37; Isaiah 37:38. This idol is identified with the eagle-headed human figure, which is one of the most prominent on the earliest Assyrian monuments, and is always represented as contending with, and conquering, the lion or the bull.