Relating to or using the measurement and analysis of color using a colorimeter or similar instrument.
Derived from 'colorimetry' with the adjectival suffix '-ic.' Scientific terminology that became standard in the 20th century.
Colorimetric tests are used in everything from water quality testing (where a color change indicates pollution) to medical diagnostics where a test strip's color intensity tells you exactly how much glucose is in urine or how much chlorine is in a pool.
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