"gauge pressure" meaning in English

{
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        "2": "gauge",
        "3": "pressure"
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      "expansion": "gauge + pressure",
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  ],
  "etymology_text": "From gauge + pressure.",
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      "expansion": "gauge pressure",
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  "lang_code": "en",
  "pos": "noun",
  "senses": [
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          "name": "Meteorology",
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      ],
      "glosses": [
        "The absolute pressure minus the atmospheric pressure."
      ],
      "id": "en-gauge_pressure-en-noun-Je6povsS",
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "meteorology",
          "meteorology"
        ],
        [
          "absolute pressure",
          "absolute pressure"
        ],
        [
          "atmospheric pressure",
          "atmospheric pressure"
        ]
      ],
      "raw_glosses": [
        "(physics, meteorology) The absolute pressure minus the atmospheric pressure."
      ],
      "topics": [
        "climatology",
        "meteorology",
        "natural-sciences",
        "physical-sciences",
        "physics"
      ],
      "translations": [
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "the absolute pressure minus the atmospheric pressure",
          "tags": [
            "feminine"
          ],
          "word": "presión manométrica"
        },
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "the absolute pressure minus the atmospheric pressure",
          "tags": [
            "feminine"
          ],
          "word": "presión relativa"
        }
      ],
      "wikipedia": [
        "gauge pressure"
      ]
    }
  ],
  "word": "gauge pressure"
}

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        "2": "gauge",
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      "expansion": "gauge + pressure",
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  ],
  "etymology_text": "From gauge + pressure.",
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      "expansion": "gauge pressure",
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  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "The absolute pressure minus the atmospheric pressure."
      ],
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "meteorology",
          "meteorology"
        ],
        [
          "absolute pressure",
          "absolute pressure"
        ],
        [
          "atmospheric pressure",
          "atmospheric pressure"
        ]
      ],
      "raw_glosses": [
        "(physics, meteorology) The absolute pressure minus the atmospheric pressure."
      ],
      "topics": [
        "climatology",
        "meteorology",
        "natural-sciences",
        "physical-sciences",
        "physics"
      ],
      "wikipedia": [
        "gauge pressure"
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  ],
  "translations": [
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "the absolute pressure minus the atmospheric pressure",
      "tags": [
        "feminine"
      ],
      "word": "presión manométrica"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "the absolute pressure minus the atmospheric pressure",
      "tags": [
        "feminine"
      ],
      "word": "presión relativa"
    }
  ],
  "word": "gauge pressure"
}