The Collaborative International Dictionary of English v.0.48:

Ninib \Ninib\ prop. n. (Sumerian and Babylonian mythology)
   A solar deity, first-born of Bel and consort was Gula; god of
   war and the chase and agriculture; sometimes identifed with
   Biblical Nimrod.

   Syn: Ninurta.
        [WordNet 1.5] Ninigi

WordNet (r) 3.0 (2006):

Ninib
    n 1: a solar deity; firstborn of Bel and consort was Gula; god
         of war and the chase and agriculture; sometimes identified
         with biblical Nimrod [syn: Ninurta, Ninib]