"pendulum saw" meaning in English

{
  "forms": [
    {
      "form": "pendulum saws",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "pendulum saw (plural pendulum saws)",
      "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": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A mechanically powered circular saw with the blade mounted so it can swing into the material."
      ],
      "id": "en-pendulum_saw-en-noun-dmwJt3H9",
      "links": [
        [
          "mechanical",
          "mechanical"
        ],
        [
          "circular saw",
          "circular saw"
        ],
        [
          "blade",
          "blade"
        ],
        [
          "mount",
          "mount"
        ],
        [
          "swing",
          "swing"
        ]
      ],
      "synonyms": [
        {
          "tags": [
            "New-Zealand"
          ],
          "word": "goose saw"
        },
        {
          "word": "swing saw"
        }
      ],
      "wikipedia": [
        "pendulum saw"
      ]
    }
  ],
  "word": "pendulum saw"
}

{
  "forms": [
    {
      "form": "pendulum saws",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "pendulum saw (plural pendulum saws)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "A mechanically powered circular saw with the blade mounted so it can swing into the material."
      ],
      "links": [
        [
          "mechanical",
          "mechanical"
        ],
        [
          "circular saw",
          "circular saw"
        ],
        [
          "blade",
          "blade"
        ],
        [
          "mount",
          "mount"
        ],
        [
          "swing",
          "swing"
        ]
      ],
      "wikipedia": [
        "pendulum saw"
      ]
    }
  ],
  "synonyms": [
    {
      "tags": [
        "New-Zealand"
      ],
      "word": "goose saw"
    },
    {
      "word": "swing saw"
    }
  ],
  "word": "pendulum saw"
}