Main Entry: nem·e·sis

Pronunciation: \ˈne-mə-səs\

Function: noun

Etymology: Latin, from Greek

Date: 1561

1 capitalized : the Greek goddess of retributive justice
2 plural nem·e·ses \-ˌsēz\ a : one that inflicts retribution or vengeance b : a formidable and usually victorious rival or opponent
3 plural nem·eses a : an act or effect of retribution b : bane 2