"Gels" refer to a type of semi-solid substance that often has properties of both a solid and a liquid. They are composed of a liquid phase that is dispersed within a solid network, allowing them to maintain a definite shape while still being capable of flowing under stress. Gels are commonly used in various fields, including: 1. **Food**: Gels are used in food products like jellies, jams, and certain desserts.
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