a-ha moment(redirected from an a ha moment)
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A moment or instance at which a sudden, revelatory idea, realization, or solution to a problem comes to mind. We'd been working on the problem at the lab for weeks, but the aha moment came to me when I was out gardening! Wait, I think I just had an a-ha moment—what if we used liquid metal to cool the processor? Couldn't that prevent overheating? Dad's all excited, saying he just had an a-ha moment about the business.
See also: moment
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