Definition of eureka in English:



  • 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’
    • ‘His suggestive techniques had begun to dethaw items that were permafrozen in my subconscious; a few such items bubbled up to the surface - eureka moments - much to my astonishment.’
    • ‘The samples were also chemically analyzed, and - eureka!’
    • ‘Then one day you have a eureka moment: two facts connect themselves in your mind in some way you've never thought of before.’
    • ‘Robert discovers what happens when we have those eureka moments of original thought - and how to have more of them.’
    • ‘‘I think the eureka moment is a bit of a myth,’ he said.’
    • ‘There's nothing like the eureka moment of discovering something that no one knew before.’
    • ‘That's handy because you never know when you'll be struck by a eureka moment.’
    • ‘I don't know that there will have been a eureka moment for string theory in the same way, so that there will be a specific time, but it could well be that some of the ideas of string theory.’
    • ‘I've always thought that people can achieve eureka moments by doodling.’
    • ‘Well, I had what they call a eureka moment at that time.’
    • ‘While trying to put myself into her frame of mind, a sudden and unprovoked eureka moment came over me.’
    • ‘A few minutes later, as his story goes, he glanced at his full bookshelf and eureka!’
    • ‘The novel thus can be alternately vague and eureka!’
    • ‘I can immediately apply many of these eureka moments to my practise as a new media lecturer.’
    • ‘As he claimed descent from kings, the priesthood, under the threat of being put to the sword, no doubt, confirmed his rights to the throne of Persia, and eureka!’
    • ‘It looks like the place to nail down a place in the social network where resource sharing and eureka moments follow.’
    • ‘As students began to understand the historical process and utilize it, questions were reflected in their eyes or discomfort in their body language and then, eureka!’
    • ‘The technology made for some interesting eureka moments.’
    • ‘So I decided to visit the Imperial War Museum and was invited into the private reading room to research the books and, eureka!’
    • ‘How many of you have read a blog that: crystallises lots of thoughts and questions and uneases that have been whirling round in your head, makes you think eureka!’


mass nountrademark
  • An alloy of copper and nickel used for electrical filaments and resistance wire.


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.