"free convection" meaning in English

{
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    {
      "form": "free convections",
      "tags": [
        "plural"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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          "name": "English entries with incorrect language header",
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          "orig": "en:Physics",
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      "examples": [
        {
          "text": "The draft of a chimney due to a fire in a fireplace, and the rising of smoke particles from a fire, are due to free convection."
        },
        {
          "text": "The transfer of heat from a hot object by means of upward hot air currents from the object, is due to free convection."
        }
      ],
      "glosses": [
        "The convection (carriage) of contents of a fluid, such as mass or (especially) heat, by means of currents induced in the fluid by a buoyancy force which is dependent on an acceleration (such as gravity) acting upon density changes in the fluid which are induced by heat."
      ],
      "id": "en-free_convection-en-noun-GxLKx089",
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          "physics",
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        [
          "convection",
          "convection"
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        [
          "fluid",
          "fluid"
        ],
        [
          "mass",
          "mass"
        ],
        [
          "heat",
          "heat"
        ],
        [
          "buoyancy",
          "buoyancy"
        ],
        [
          "acceleration",
          "acceleration"
        ],
        [
          "gravity",
          "gravity"
        ],
        [
          "density",
          "density"
        ]
      ],
      "raw_glosses": [
        "(physics) The convection (carriage) of contents of a fluid, such as mass or (especially) heat, by means of currents induced in the fluid by a buoyancy force which is dependent on an acceleration (such as gravity) acting upon density changes in the fluid which are induced by heat."
      ],
      "related": [
        {
          "word": "convection"
        },
        {
          "word": "forced convection"
        },
        {
          "word": "natural convection"
        },
        {
          "word": "gravitational convection"
        }
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ],
      "wikipedia": [
        "free convection"
      ]
    }
  ],
  "word": "free convection"
}

{
  "forms": [
    {
      "form": "free convections",
      "tags": [
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "convection"
    },
    {
      "word": "forced convection"
    },
    {
      "word": "natural convection"
    },
    {
      "word": "gravitational convection"
    }
  ],
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        "en:Physics"
      ],
      "examples": [
        {
          "text": "The draft of a chimney due to a fire in a fireplace, and the rising of smoke particles from a fire, are due to free convection."
        },
        {
          "text": "The transfer of heat from a hot object by means of upward hot air currents from the object, is due to free convection."
        }
      ],
      "glosses": [
        "The convection (carriage) of contents of a fluid, such as mass or (especially) heat, by means of currents induced in the fluid by a buoyancy force which is dependent on an acceleration (such as gravity) acting upon density changes in the fluid which are induced by heat."
      ],
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          "physics"
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          "convection",
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          "fluid",
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        ],
        [
          "mass",
          "mass"
        ],
        [
          "heat",
          "heat"
        ],
        [
          "buoyancy",
          "buoyancy"
        ],
        [
          "acceleration",
          "acceleration"
        ],
        [
          "gravity",
          "gravity"
        ],
        [
          "density",
          "density"
        ]
      ],
      "raw_glosses": [
        "(physics) The convection (carriage) of contents of a fluid, such as mass or (especially) heat, by means of currents induced in the fluid by a buoyancy force which is dependent on an acceleration (such as gravity) acting upon density changes in the fluid which are induced by heat."
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "topics": [
        "natural-sciences",
        "physical-sciences",
        "physics"
      ],
      "wikipedia": [
        "free convection"
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    }
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  "word": "free convection"
}