Plural of bimetal; multiple composite materials made of two bonded metals, especially used in industrial applications.
From 'bimetal' plus the standard English plural '-s.' Used in technical and engineering contexts to describe various two-metal composite materials.
Engineers love bimetals because one metal expanding differently than another doesn't just make them useless—it makes them perfectly useful for measurement and temperature control, turning a 'defect' into a feature.
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