There are 2 main definitions of eureka in English:

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eureka1

Line breaks: eur¦eka
Pronunciation: /ˌjʊ(ə)ˈriːkə
 
/

exclamation

A cry of joy or satisfaction when one finds or discovers something: The answer hit me. ‘Eureka!’ I cried [as noun]: there weren’t many eurekas but science is moving steadily [as modifier]: the eureka moment for him came when he was hill-walking
More example sentences
  • There's nothing like the eureka moment of discovering something that no one knew before.
  • The samples were also chemically analyzed, and - eureka!
  • A few minutes later, as his story goes, he glanced at his full bookshelf and eureka!

noun

[mass noun] trademark Back to top  
An alloy of copper and nickel used for electrical filaments and resistance wire.

Origin

early 17th century: from Greek heurēka 'I have found it' (from heuriskein 'find'), said to have been uttered by Archimedes when he hit upon a method of determining the purity of gold. The noun dates from the early 20th century.

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There are 2 main definitions of eureka in English:

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Eureka2

Syllabification: Eu·re·ka
Pronunciation: /yo͝oˈrēkə, yə-/

Entry from US English dictionary

A port city in northwestern California, on Humboldt Bay off the Pacific Ocean, a noted lumbering center; population 25,300 (est. 2008).

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