"potassium channel" meaning in English

{
  "forms": [
    {
      "form": "potassium channels",
      "tags": [
        "plural"
      ]
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  ],
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      "expansion": "potassium channel (plural potassium channels)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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          "kind": "other",
          "name": "English entries with incorrect language header",
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          "langcode": "en",
          "name": "Biology",
          "orig": "en:Biology",
          "parents": [
            "Sciences",
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            "Fundamental"
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          "source": "w"
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      ],
      "glosses": [
        "A small pore in a cell membrane that is selective to potassium ions and has several regulatory functions."
      ],
      "id": "en-potassium_channel-en-noun-xIAXClKj",
      "links": [
        [
          "biology",
          "biology"
        ],
        [
          "pore",
          "pore"
        ],
        [
          "cell membrane",
          "cell membrane"
        ],
        [
          "selective",
          "selective"
        ],
        [
          "ion",
          "ion"
        ],
        [
          "regulatory",
          "regulatory"
        ]
      ],
      "raw_glosses": [
        "(biology) A small pore in a cell membrane that is selective to potassium ions and has several regulatory functions."
      ],
      "topics": [
        "biology",
        "natural-sciences"
      ],
      "wikipedia": [
        "potassium channel"
      ]
    }
  ],
  "word": "potassium channel"
}

{
  "forms": [
    {
      "form": "potassium channels",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "potassium channel (plural potassium channels)",
      "name": "en-noun"
    }
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "A small pore in a cell membrane that is selective to potassium ions and has several regulatory functions."
      ],
      "links": [
        [
          "biology",
          "biology"
        ],
        [
          "pore",
          "pore"
        ],
        [
          "cell membrane",
          "cell membrane"
        ],
        [
          "selective",
          "selective"
        ],
        [
          "ion",
          "ion"
        ],
        [
          "regulatory",
          "regulatory"
        ]
      ],
      "raw_glosses": [
        "(biology) A small pore in a cell membrane that is selective to potassium ions and has several regulatory functions."
      ],
      "topics": [
        "biology",
        "natural-sciences"
      ],
      "wikipedia": [
        "potassium channel"
      ]
    }
  ],
  "word": "potassium channel"
}