"combustion triangle" meaning in All languages combined

{
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        "2": "combustion",
        "3": "triangle"
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      "expansion": "combustion + triangle",
      "name": "compound"
    }
  ],
  "etymology_text": "combustion + triangle From the three elements necessary to sustain combustion, therefore being a metaphorical \"triangle\" (though more like a tripod, having three supporting elements sustaining combustion)",
  "forms": [
    {
      "form": "combustion triangles",
      "tags": [
        "plural"
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  "head_templates": [
    {
      "args": {},
      "expansion": "combustion triangle (plural combustion triangles)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
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          "source": "w"
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      "glosses": [
        "Synonym of fire triangle"
      ],
      "id": "en-combustion_triangle-en-noun-kxmpQXEp",
      "links": [
        [
          "fire triangle",
          "fire triangle#English"
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      "synonyms": [
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          "tags": [
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          "word": "fire triangle"
        }
      ]
    }
  ],
  "word": "combustion triangle"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "combustion",
        "3": "triangle"
      },
      "expansion": "combustion + triangle",
      "name": "compound"
    }
  ],
  "etymology_text": "combustion + triangle From the three elements necessary to sustain combustion, therefore being a metaphorical \"triangle\" (though more like a tripod, having three supporting elements sustaining combustion)",
  "forms": [
    {
      "form": "combustion triangles",
      "tags": [
        "plural"
      ]
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  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "combustion triangle (plural combustion triangles)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        "English countable nouns",
        "English entries with incorrect language header",
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      "glosses": [
        "Synonym of fire triangle"
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      "links": [
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          "fire triangle",
          "fire triangle#English"
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          "word": "fire triangle"
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  "word": "combustion triangle"
}