1. (Greek mythology) a friend of Achilles who was killed in the Trojan War; his death led Achilles to return to the fight after his quarrel with Agamemnon;
WordNet (r) 3.0 (2006):
Patroclus
n 1: (Greek mythology) a friend of Achilles who was killed in
the Trojan War; his death led Achilles to return to the
fight after his quarrel with Agamemnon