"hydrocolloid" meaning in English

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  "etymology_text": "From hydro- + colloid.",
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    {
      "form": "hydrocolloids",
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      "glosses": [
        "Any material that forms a colloid (especially a gel) when mixed with water"
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        "Such a material, made from agar, used to make dental impressions"
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          "agar",
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          "dental",
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          "impression",
          "impression"
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  "word": "hydrocolloid"
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        "Any material that forms a colloid (especially a gel) when mixed with water"
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