"elliptic spring" meaning in English

{
  "forms": [
    {
      "form": "elliptic springs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "elliptic spring (plural elliptic springs)",
      "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": "topical",
          "langcode": "en",
          "name": "Automotive",
          "orig": "en:Automotive",
          "parents": [
            "Transport",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Mechanical engineering",
          "orig": "en:Mechanical engineering",
          "parents": [
            "Engineering",
            "Applied sciences",
            "Technology",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1962 December, “The B.R. standard diesel-electric Type 1 locomotive”, in Modern Railways, page 382",
          "text": "The bogie bolster itself is mounted on two double elliptic springs, which are spaced by a channel section spring plank suspended from the bogie frame by swing hangers and knife-edge rockers.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A curved leaf spring of different styles."
      ],
      "id": "en-elliptic_spring-en-noun-Ut-qpiVV",
      "links": [
        [
          "mechanical engineering",
          "mechanical engineering"
        ],
        [
          "automotive",
          "automotive"
        ],
        [
          "leaf spring",
          "leaf spring"
        ]
      ],
      "raw_glosses": [
        "(mechanical engineering, automotive) A curved leaf spring of different styles."
      ],
      "topics": [
        "automotive",
        "engineering",
        "mechanical",
        "mechanical-engineering",
        "natural-sciences",
        "physical-sciences",
        "transport",
        "vehicles"
      ]
    }
  ],
  "word": "elliptic spring"
}

{
  "forms": [
    {
      "form": "elliptic springs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "elliptic spring (plural elliptic springs)",
      "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",
        "English terms with quotations",
        "en:Automotive",
        "en:Mechanical engineering"
      ],
      "examples": [
        {
          "ref": "1962 December, “The B.R. standard diesel-electric Type 1 locomotive”, in Modern Railways, page 382",
          "text": "The bogie bolster itself is mounted on two double elliptic springs, which are spaced by a channel section spring plank suspended from the bogie frame by swing hangers and knife-edge rockers.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A curved leaf spring of different styles."
      ],
      "links": [
        [
          "mechanical engineering",
          "mechanical engineering"
        ],
        [
          "automotive",
          "automotive"
        ],
        [
          "leaf spring",
          "leaf spring"
        ]
      ],
      "raw_glosses": [
        "(mechanical engineering, automotive) A curved leaf spring of different styles."
      ],
      "topics": [
        "automotive",
        "engineering",
        "mechanical",
        "mechanical-engineering",
        "natural-sciences",
        "physical-sciences",
        "transport",
        "vehicles"
      ]
    }
  ],
  "word": "elliptic spring"
}