"renal clearance" meaning in English

{
  "forms": [
    {
      "form": "renal clearances",
      "tags": [
        "plural"
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  "head_templates": [
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      "expansion": "renal clearance (countable and uncountable, plural renal clearances)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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      ],
      "glosses": [
        "A measure of the ability of the kidneys to remove a specific substance from the bloodstream."
      ],
      "id": "en-renal_clearance-en-noun-hj-~mmw0",
      "links": [
        [
          "medicine",
          "medicine"
        ],
        [
          "kidney",
          "kidney"
        ],
        [
          "bloodstream",
          "bloodstream"
        ]
      ],
      "raw_glosses": [
        "(medicine) A measure of the ability of the kidneys to remove a specific substance from the bloodstream."
      ],
      "synonyms": [
        {
          "word": "clearance"
        }
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "topics": [
        "medicine",
        "sciences"
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "measure of functioning of kidneys",
          "word": "puhdistuma"
        }
      ],
      "wikipedia": [
        "renal clearance"
      ]
    }
  ],
  "word": "renal clearance"
}

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    {
      "form": "renal clearances",
      "tags": [
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "A measure of the ability of the kidneys to remove a specific substance from the bloodstream."
      ],
      "links": [
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          "medicine",
          "medicine"
        ],
        [
          "kidney",
          "kidney"
        ],
        [
          "bloodstream",
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        ]
      ],
      "raw_glosses": [
        "(medicine) A measure of the ability of the kidneys to remove a specific substance from the bloodstream."
      ],
      "tags": [
        "countable",
        "uncountable"
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      "topics": [
        "medicine",
        "sciences"
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      "wikipedia": [
        "renal clearance"
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  "synonyms": [
    {
      "word": "clearance"
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "measure of functioning of kidneys",
      "word": "puhdistuma"
    }
  ],
  "word": "renal clearance"
}