"A battery" meaning in English

{
  "forms": [
    {
      "form": "A batteries",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "A battery (plural A batteries)",
      "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": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
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        {
          "kind": "other",
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          "name": "Terms with Finnish translations",
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          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with German translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Electronics",
          "orig": "en:Electronics",
          "parents": [
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A battery used to heat the filament or cathode heaters of electron tubes."
      ],
      "id": "en-A_battery-en-noun-Zy6GLJCx",
      "links": [
        [
          "electronics",
          "electronics"
        ],
        [
          "battery",
          "battery"
        ],
        [
          "filament",
          "filament"
        ],
        [
          "cathode",
          "cathode"
        ],
        [
          "electron tube",
          "electron tube"
        ]
      ],
      "raw_glosses": [
        "(dated, electronics) A battery used to heat the filament or cathode heaters of electron tubes."
      ],
      "related": [
        {
          "word": "B battery"
        },
        {
          "word": "C battery"
        }
      ],
      "synonyms": [
        {
          "word": "filament battery"
        }
      ],
      "tags": [
        "dated"
      ],
      "topics": [
        "business",
        "electrical-engineering",
        "electricity",
        "electromagnetism",
        "electronics",
        "energy",
        "engineering",
        "natural-sciences",
        "physical-sciences",
        "physics"
      ],
      "translations": [
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "battery to heat the filament of electron tube",
          "word": "hehkuparisto"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "battery to heat the filament of electron tube",
          "tags": [
            "feminine"
          ],
          "word": "Anodenbatterie"
        }
      ]
    }
  ],
  "word": "A battery"
}

{
  "forms": [
    {
      "form": "A batteries",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "A battery (plural A batteries)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "B battery"
    },
    {
      "word": "C battery"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English dated terms",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with Finnish translations",
        "Terms with German translations",
        "en:Electronics"
      ],
      "glosses": [
        "A battery used to heat the filament or cathode heaters of electron tubes."
      ],
      "links": [
        [
          "electronics",
          "electronics"
        ],
        [
          "battery",
          "battery"
        ],
        [
          "filament",
          "filament"
        ],
        [
          "cathode",
          "cathode"
        ],
        [
          "electron tube",
          "electron tube"
        ]
      ],
      "raw_glosses": [
        "(dated, electronics) A battery used to heat the filament or cathode heaters of electron tubes."
      ],
      "tags": [
        "dated"
      ],
      "topics": [
        "business",
        "electrical-engineering",
        "electricity",
        "electromagnetism",
        "electronics",
        "energy",
        "engineering",
        "natural-sciences",
        "physical-sciences",
        "physics"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "filament battery"
    }
  ],
  "translations": [
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "battery to heat the filament of electron tube",
      "word": "hehkuparisto"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "battery to heat the filament of electron tube",
      "tags": [
        "feminine"
      ],
      "word": "Anodenbatterie"
    }
  ],
  "word": "A battery"
}