"herringbone gear" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "fishbone",
        "3": "skeleton of a herring"
      },
      "expansion": "skeleton of a herring",
      "name": "l"
    }
  ],
  "etymology_text": "From the fancied resemblance of the two matching bevels to the skeleton of a herring.",
  "forms": [
    {
      "form": "herringbone gears",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "herringbone gear (plural herringbone gears)",
      "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"
        }
      ],
      "glosses": [
        "A type of gear wheel comprising two integral halves shaped like two bevel gears next to each other, with their tooth angles pointing to the centerline."
      ],
      "id": "en-herringbone_gear-en-noun-N6ldy5F6",
      "links": [
        [
          "gear wheel",
          "gear wheel#English"
        ],
        [
          "bevel gears",
          "bevel gear#English"
        ]
      ]
    }
  ],
  "word": "herringbone gear"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "fishbone",
        "3": "skeleton of a herring"
      },
      "expansion": "skeleton of a herring",
      "name": "l"
    }
  ],
  "etymology_text": "From the fancied resemblance of the two matching bevels to the skeleton of a herring.",
  "forms": [
    {
      "form": "herringbone gears",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "herringbone gear (plural herringbone gears)",
      "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"
      ],
      "glosses": [
        "A type of gear wheel comprising two integral halves shaped like two bevel gears next to each other, with their tooth angles pointing to the centerline."
      ],
      "links": [
        [
          "gear wheel",
          "gear wheel#English"
        ],
        [
          "bevel gears",
          "bevel gear#English"
        ]
      ]
    }
  ],
  "word": "herringbone gear"
}