"normal saline" meaning in English

{
  "forms": [
    {
      "form": "normal salines",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "normal saline (countable and uncountable, plural normal salines)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Medicine",
          "orig": "en:Medicine",
          "parents": [
            "Biology",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A solution of 0.9% w/v of NaCl, about 300 mOsm/L."
      ],
      "id": "en-normal_saline-en-noun-MpR4AvUN",
      "links": [
        [
          "medicine",
          "medicine"
        ],
        [
          "w/v",
          "w/v"
        ],
        [
          "NaCl",
          "sodium chloride"
        ],
        [
          "mOsm",
          "osmolality"
        ]
      ],
      "raw_glosses": [
        "(medicine) A solution of 0.9% w/v of NaCl, about 300 mOsm/L."
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "topics": [
        "medicine",
        "sciences"
      ],
      "translations": [
        {
          "code": "cs",
          "lang": "Czech",
          "sense": "solution",
          "tags": [
            "masculine"
          ],
          "word": "fyziologický roztok"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "solution",
          "word": "keittosuolaliuos"
        },
        {
          "code": "pl",
          "lang": "Polish",
          "sense": "solution",
          "tags": [
            "feminine"
          ],
          "word": "sól fizjologiczna"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "fiziologičeskij rastvor",
          "sense": "solution",
          "word": "физиологический раствор"
        }
      ],
      "wikipedia": [
        "Saline (medicine)"
      ]
    }
  ],
  "word": "normal saline"
}

{
  "forms": [
    {
      "form": "normal salines",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "normal saline (countable and uncountable, plural normal salines)",
      "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",
        "en:Medicine"
      ],
      "glosses": [
        "A solution of 0.9% w/v of NaCl, about 300 mOsm/L."
      ],
      "links": [
        [
          "medicine",
          "medicine"
        ],
        [
          "w/v",
          "w/v"
        ],
        [
          "NaCl",
          "sodium chloride"
        ],
        [
          "mOsm",
          "osmolality"
        ]
      ],
      "raw_glosses": [
        "(medicine) A solution of 0.9% w/v of NaCl, about 300 mOsm/L."
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "topics": [
        "medicine",
        "sciences"
      ],
      "wikipedia": [
        "Saline (medicine)"
      ]
    }
  ],
  "translations": [
    {
      "code": "cs",
      "lang": "Czech",
      "sense": "solution",
      "tags": [
        "masculine"
      ],
      "word": "fyziologický roztok"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "solution",
      "word": "keittosuolaliuos"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "solution",
      "tags": [
        "feminine"
      ],
      "word": "sól fizjologiczna"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "fiziologičeskij rastvor",
      "sense": "solution",
      "word": "физиологический раствор"
    }
  ],
  "word": "normal saline"
}