[ ˌjʊ(ə)'ri:kə ]
■ exclamation a cry of joy or satisfaction when one finds or discovers something.
■ noun an alloy of copper and nickel used for electrical filament and resistance wire.
Origin
C17: from Gk heurēka 'I have found it', said to have been uttered by Archimedes when he hit upon a method of determining the purity of gold.