"Gel" can refer to a few different things, depending on the context: 1. **Substance**: In a scientific or everyday context, a gel is a semi-solid, jelly-like substance that has properties between a liquid and a solid. Gels are often made by mixing a liquid with a gelling agent, which creates a network that traps the liquid, giving it a gel-like consistency. Common examples include gelatin, alginate, and agar.
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