1) Erinyes 2) Eumenides 3) Fury 4) Greek goddess 5) One of the three furies 
Megaera (ə; Ancient Greek: Μέγαιρα, English translation: `the jealous one`) is one of the Erinyes, Eumenides or `Furies` in Greek mythology. Lamprière`s Classical Dictionary states `According to the most received opinions, they were three in number, Tisiphone, Megara {sic} and Alecto` and `Megaera ... daughter of Nox and Acheron`...
(from the article `Furies`) ...and of Gaea. Euripides was the first to speak of them as three in number. Later writers named them Allecto (`Unceasing in Anger`), Tisiphone ...
[n] - one of the three Furies
noun one of the three Furies
One of several Furies.