The Collaborative International Dictionary of English v.0.48:
Eblis \Eb"lis\, n. [Ar. iblis.] (Moham. Myth.) The prince of the evil spirits; Satan. [Written also Eblees.] [1913 Webster]WordNet (r) 3.0 (2006):
eblis n 1: (Islam) the principal evil jinni in Islamic mythology