Etymology: From the Greek meaning strife
- (Greek mythology) The goddess of discord, confusion, and strife, keeper of the golden Apple of Discord which she threw into the wedding of Peleus and Thetis starting the Trojan War; daughter of Nyx, sister and constant companion of Ares, mother of Lethe.
- (astronomy) The largest known dwarf planet in the solar system, (initially dubbed the "tenth planet",) previously known as 136199 Eris, with one natural satellite, Dysnomia.
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