Corrode
Definition 1 of 2
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Not Instant
Corrode suggests a slow process, not something that happens quickly. The old bridge corroded over decades of exposure.
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Physical Change
Use 'corrode' to describe the physical damage of materials, usually by chemicals or weather. Acid rain can corrode building surfaces.
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Visible Effects
Corrosion often results in noticeable changes like rust or color fading. The pipes corroded and turned a greenish color.