Search Result for "orestes": 
Wordnet 3.0

NOUN (1)

1. (Greek mythology) the son of Agamemnon and Clytemnestra; his sister Electra persuaded him to avenge Agamemnon's death by killing Clytemnestra and Aegisthus; 



WordNet (r) 3.0 (2006):

Orestes
    n 1: (Greek mythology) the son of Agamemnon and Clytemnestra;
         his sister Electra persuaded him to avenge Agamemnon's
         death by killing Clytemnestra and Aegisthus