eureka

/yooreek/

  • 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 Greek heureka ‘I have found it’, said to have been uttered by Archimedes (died 212 bc) when he hit upon a method of determining the purity of gold.

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