"breathing gas" meaning in English

{
  "forms": [
    {
      "form": "breathing gases",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "breathing gas (countable and uncountable, plural breathing gases)",
      "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": "other",
          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Gases",
          "orig": "en:Gases",
          "parents": [
            "Matter",
            "Chemistry",
            "Nature",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Oxygen",
          "orig": "en:Oxygen",
          "parents": [
            "Chalcogens",
            "Chemical elements",
            "Matter",
            "Chemistry",
            "Nature",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Underwater diving",
          "orig": "en:Underwater diving",
          "parents": [
            "Water sports",
            "Sports",
            "Human activity",
            "Human behaviour",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A mixture of gases used for respiration in breathing equipment, typically in scuba diving."
      ],
      "id": "en-breathing_gas-en-noun-fOnJ9hDz",
      "links": [
        [
          "underwater",
          "underwater"
        ],
        [
          "diving",
          "diving#Noun"
        ],
        [
          "mixture",
          "mixture"
        ],
        [
          "gas",
          "gas"
        ],
        [
          "respiration",
          "respiration"
        ],
        [
          "breathing",
          "breathing"
        ],
        [
          "equipment",
          "equipment"
        ],
        [
          "scuba diving",
          "scuba diving"
        ]
      ],
      "raw_glosses": [
        "(underwater diving) A mixture of gases used for respiration in breathing equipment, typically in scuba diving."
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "topics": [
        "diving",
        "hobbies",
        "lifestyle",
        "sports",
        "underwater-diving"
      ],
      "translations": [
        {
          "code": "de",
          "lang": "German",
          "sense": "Translations",
          "tags": [
            "neuter"
          ],
          "word": "Atemgas"
        }
      ],
      "wikipedia": [
        "breathing gas"
      ]
    }
  ],
  "word": "breathing gas"
}

{
  "forms": [
    {
      "form": "breathing gases",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "breathing gas (countable and uncountable, plural breathing gases)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "English uncountable nouns",
        "Translation table header lacks gloss",
        "en:Gases",
        "en:Oxygen",
        "en:Underwater diving"
      ],
      "glosses": [
        "A mixture of gases used for respiration in breathing equipment, typically in scuba diving."
      ],
      "links": [
        [
          "underwater",
          "underwater"
        ],
        [
          "diving",
          "diving#Noun"
        ],
        [
          "mixture",
          "mixture"
        ],
        [
          "gas",
          "gas"
        ],
        [
          "respiration",
          "respiration"
        ],
        [
          "breathing",
          "breathing"
        ],
        [
          "equipment",
          "equipment"
        ],
        [
          "scuba diving",
          "scuba diving"
        ]
      ],
      "raw_glosses": [
        "(underwater diving) A mixture of gases used for respiration in breathing equipment, typically in scuba diving."
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "topics": [
        "diving",
        "hobbies",
        "lifestyle",
        "sports",
        "underwater-diving"
      ],
      "wikipedia": [
        "breathing gas"
      ]
    }
  ],
  "translations": [
    {
      "code": "de",
      "lang": "German",
      "sense": "Translations",
      "tags": [
        "neuter"
      ],
      "word": "Atemgas"
    }
  ],
  "word": "breathing gas"
}