Pronunciation: (ag"u-mem'non, -nun),[key] —n. 1. Class. Myth.a king of Mycenae, a son of Atreus and brother of Menelaus. He led the Greeks in the Trojan War and was murdered by Clytemnestra, his wife, upon his return from Troy.
2. (italics) a tragedy (458 b.c.) by Aeschylus. Cf. Oresteia.