"flat-bottom" meaning in English

{
  "forms": [
    {
      "form": "more flat-bottom",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most flat-bottom",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "flat-bottom (comparative more flat-bottom, superlative most flat-bottom)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "alt_of": [
        {
          "word": "flat-bottomed"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1951 April, D. S. Barrie, “British Railways: A Survey, 1948-1950”, in Railway Magazine, number 600, page 225",
          "text": "Two standard types of flat-bottom track were introduced as early as 1949, and some 1,570 miles had been laid down to the end of 1950.",
          "type": "quotation"
        },
        {
          "ref": "1979 August, Michael Harris, “A line for all reasons: the North Yorkshire Moors Railway”, in Railway World, page 412",
          "text": "With secondhand bullhead rail almost unobtainable, the NYMR has been forced to go for new flat-bottom rail and orders are being placed; 58 fb rails are already en route to the railway.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Alternative form of flat-bottomed"
      ],
      "id": "en-flat-bottom-en-adj-fNdEgY3Z",
      "links": [
        [
          "flat-bottomed",
          "flat-bottomed#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "flat-bottom"
}

{
  "forms": [
    {
      "form": "more flat-bottom",
      "tags": [
        "comparative"
      ]
    },
    {
      "form": "most flat-bottom",
      "tags": [
        "superlative"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "flat-bottom (comparative more flat-bottom, superlative most flat-bottom)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "alt_of": [
        {
          "word": "flat-bottomed"
        }
      ],
      "categories": [
        "English adjectives",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "1951 April, D. S. Barrie, “British Railways: A Survey, 1948-1950”, in Railway Magazine, number 600, page 225",
          "text": "Two standard types of flat-bottom track were introduced as early as 1949, and some 1,570 miles had been laid down to the end of 1950.",
          "type": "quotation"
        },
        {
          "ref": "1979 August, Michael Harris, “A line for all reasons: the North Yorkshire Moors Railway”, in Railway World, page 412",
          "text": "With secondhand bullhead rail almost unobtainable, the NYMR has been forced to go for new flat-bottom rail and orders are being placed; 58 fb rails are already en route to the railway.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Alternative form of flat-bottomed"
      ],
      "links": [
        [
          "flat-bottomed",
          "flat-bottomed#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "flat-bottom"
}