"dust buster" meaning in English

{
  "etymology_text": "A genericization of the 1979 Black & Decker Dustbuster hand-held vacuum cleaner, from dust + buster (“vanquisher, overpowerer”).",
  "forms": [
    {
      "form": "dust busters",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "dustbuster",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "dust buster (plural dust busters)",
      "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": "English genericized trademarks",
          "parents": [
            "Genericized trademarks",
            "Terms by etymology",
            "Trademarks",
            "Terms by usage"
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          "source": "w"
        },
        {
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          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A hand-held vacuum cleaner"
      ],
      "id": "en-dust_buster-en-noun-~IIBIFzK",
      "links": [
        [
          "hand-held",
          "hand-held"
        ],
        [
          "vacuum cleaner",
          "vacuum cleaner"
        ]
      ],
      "synonyms": [
        {
          "word": "minivac"
        }
      ],
      "wikipedia": [
        "Black & Decker",
        "Dustbuster"
      ]
    }
  ],
  "word": "dust buster"
}

{
  "etymology_text": "A genericization of the 1979 Black & Decker Dustbuster hand-held vacuum cleaner, from dust + buster (“vanquisher, overpowerer”).",
  "forms": [
    {
      "form": "dust busters",
      "tags": [
        "plural"
      ]
    },
    {
      "form": "dustbuster",
      "tags": [
        "alternative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "dust buster (plural dust busters)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English genericized trademarks",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "A hand-held vacuum cleaner"
      ],
      "links": [
        [
          "hand-held",
          "hand-held"
        ],
        [
          "vacuum cleaner",
          "vacuum cleaner"
        ]
      ],
      "wikipedia": [
        "Black & Decker",
        "Dustbuster"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "minivac"
    }
  ],
  "word": "dust buster"
}