"aluminium bronze" meaning in English

{
  "forms": [
    {
      "form": "aluminium bronzes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
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      "args": {
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      "expansion": "aluminium bronze (countable and uncountable, plural aluminium bronzes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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          "kind": "other",
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Copper",
          "orig": "en:Copper",
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          "name": "Metallurgy",
          "orig": "en:Metallurgy",
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      ],
      "glosses": [
        "An alloy of copper with about 5% to 10% aluminium"
      ],
      "id": "en-aluminium_bronze-en-noun-yEtSXEeb",
      "links": [
        [
          "metallurgy",
          "metallurgy"
        ],
        [
          "alloy",
          "alloy"
        ],
        [
          "copper",
          "copper"
        ],
        [
          "aluminium",
          "aluminium"
        ]
      ],
      "raw_glosses": [
        "(metallurgy) An alloy of copper with about 5% to 10% aluminium"
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "topics": [
        "engineering",
        "metallurgy",
        "natural-sciences",
        "physical-sciences"
      ],
      "translations": [
        {
          "code": "pt",
          "lang": "Portuguese",
          "sense": "alloy of copper with about 5% to 10% aluminium",
          "tags": [
            "masculine"
          ],
          "word": "bronze de alumínio"
        }
      ],
      "wikipedia": [
        "aluminium bronze"
      ]
    }
  ],
  "word": "aluminium bronze"
}

{
  "forms": [
    {
      "form": "aluminium bronzes",
      "tags": [
        "plural"
      ]
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  ],
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      "expansion": "aluminium bronze (countable and uncountable, plural aluminium bronzes)",
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        "en:Copper",
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      "glosses": [
        "An alloy of copper with about 5% to 10% aluminium"
      ],
      "links": [
        [
          "metallurgy",
          "metallurgy"
        ],
        [
          "alloy",
          "alloy"
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        [
          "copper",
          "copper"
        ],
        [
          "aluminium",
          "aluminium"
        ]
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      "raw_glosses": [
        "(metallurgy) An alloy of copper with about 5% to 10% aluminium"
      ],
      "tags": [
        "countable",
        "uncountable"
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        "engineering",
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      "wikipedia": [
        "aluminium bronze"
      ]
    }
  ],
  "translations": [
    {
      "code": "pt",
      "lang": "Portuguese",
      "sense": "alloy of copper with about 5% to 10% aluminium",
      "tags": [
        "masculine"
      ],
      "word": "bronze de alumínio"
    }
  ],
  "word": "aluminium bronze"
}