"zeta potential" meaning in English

{
  "forms": [
    {
      "form": "zeta potentials",
      "tags": [
        "plural"
      ]
    }
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  "head_templates": [
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      "args": {
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      "expansion": "zeta potential (countable and uncountable, plural zeta potentials)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
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          "source": "w"
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      ],
      "glosses": [
        "electrokinetic potential at the slipping plane, the interface which separates mobile fluid from fluid that remains attached to the surface."
      ],
      "id": "en-zeta_potential-en-noun-H6nmIGz8",
      "links": [
        [
          "electrokinetic",
          "electrokinetic"
        ],
        [
          "potential",
          "potential"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "wikipedia": [
        "zeta potential"
      ]
    }
  ],
  "word": "zeta potential"
}

{
  "forms": [
    {
      "form": "zeta potentials",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "zeta potential (countable and uncountable, plural zeta potentials)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English uncountable nouns"
      ],
      "glosses": [
        "electrokinetic potential at the slipping plane, the interface which separates mobile fluid from fluid that remains attached to the surface."
      ],
      "links": [
        [
          "electrokinetic",
          "electrokinetic"
        ],
        [
          "potential",
          "potential"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "wikipedia": [
        "zeta potential"
      ]
    }
  ],
  "word": "zeta potential"
}