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Definition of silica gel noun from the Oxford Advanced Learner's Dictionary

silica gel

noun

/ˈsɪlɪkə dʒel/

/ˈsɪlɪkə dʒel/

[uncountable]

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a substance made from silica in the form of grains, which keeps things dry by taking in water

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See silica gel in the Oxford Advanced American Dictionary

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