The Collaborative International Dictionary of English v.0.48:
Izanagi \Izanagi\ prop. n. (Japanese Mythology) The god who fathered the islands and gods of Japan with his sister Izanami. [WordNet 1.5]WordNet (r) 3.0 (2006):
Izanagi n 1: the god who fathered the islands and gods of Japan with his sister Izanami