The idiom "acid test" has its origins in the field of metallurgy, where acids were used to determine the purity and authenticity of precious metals like gold. If a metal passed the "acid test," it remained unaltered by the acid and was considered genuine. In a broader sense, the phrase has evolved to describe a rigorous and definitive examination or assessment that is used to determine the true value, quality, or effectiveness of something.

Kahulugan at ibig sabihin ng "acid test"sa English

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