"rollability" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "roll",
        "3": "ability"
      },
      "expansion": "roll + -ability",
      "name": "suffix"
    }
  ],
  "etymology_text": "From roll + -ability.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "rollability (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms suffixed with -ability",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              217,
              228
            ]
          ],
          "ref": "1963 September, “The new Tyne and Healey Mills yards of the North Eastern”, in Modern Railways, page 164:",
          "text": "Like Tees, Tyne and Healey Mills are semi-automatic in operation, in that the hump operator personally controls the secondary retarders, on which he selects one of six leaving speeds, based on his judgment of a cut's rollability and speed and the degree of siding occupation on its destined route.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "The quality of being rollable."
      ],
      "id": "en-rollability-en-noun--v3PUcPS",
      "links": [
        [
          "rollable",
          "rollable"
        ]
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "word": "rollability"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "roll",
        "3": "ability"
      },
      "expansion": "roll + -ability",
      "name": "suffix"
    }
  ],
  "etymology_text": "From roll + -ability.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "rollability (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English nouns",
        "English terms suffixed with -ability",
        "English terms with quotations",
        "English uncountable nouns",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "bold_text_offsets": [
            [
              217,
              228
            ]
          ],
          "ref": "1963 September, “The new Tyne and Healey Mills yards of the North Eastern”, in Modern Railways, page 164:",
          "text": "Like Tees, Tyne and Healey Mills are semi-automatic in operation, in that the hump operator personally controls the secondary retarders, on which he selects one of six leaving speeds, based on his judgment of a cut's rollability and speed and the degree of siding occupation on its destined route.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "The quality of being rollable."
      ],
      "links": [
        [
          "rollable",
          "rollable"
        ]
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "word": "rollability"
}