Strong's #5268: Nicrok (pronounced nis-roke')
 of foreign origin; Nisrok, a Babylonian idol:--Nisroch.
Brown-Driver-Briggs Hebrew Lexicon:
 
  nisrôk 
 
 Nisroch = "the great eagle" 
 1) an idol of Nineveh worshipped by Sennacherib; symbolised by the eagle-headed human figure
 
  Part of Speech: noun proper masculine
Relation: of foreign origin
Usage:
This word is used 2 times:
2 Kings 19:37: "as he was worshiping in the house  of Nisroch his god, that Adrammelech and Sharezer his sons"
Isaiah 37:38: "as he was worshiping in the house  of Nisroch his god, that Adrammelech and Sharezer his sons"