"train oil" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "train",
        "3": "oil",
        "id1": "oil",
        "t1": "train oil"
      },
      "expansion": "train (“train oil”) + oil",
      "name": "af"
    },
    {
      "args": {
        "1": "en",
        "2": "nl",
        "3": "traanolie",
        "4": "",
        "5": "whale oil",
        "nocap": "1"
      },
      "expansion": "partial calque of Dutch traanolie (“whale oil”)",
      "name": "partial calque"
    },
    {
      "args": {
        "1": "en",
        "2": "train",
        "id": "oil"
      },
      "expansion": "train",
      "name": "m"
    }
  ],
  "etymology_text": "From train (“train oil”) + oil, partial calque of Dutch traanolie (“whale oil”). See further etymology at train.",
  "forms": [
    {
      "form": "train oils",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "train oil (countable and uncountable, plural train oils)",
      "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",
          "langcode": "en",
          "name": "Whaling",
          "orig": "en:Whaling",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Oil obtained from the blubber of marine mammals, especially whale oil."
      ],
      "id": "en-train_oil-en-noun-q~VGu7m~",
      "links": [
        [
          "Oil",
          "oil"
        ],
        [
          "obtain",
          "obtain"
        ],
        [
          "blubber",
          "blubber"
        ],
        [
          "marine mammal",
          "marine mammal"
        ],
        [
          "whale oil",
          "whale oil"
        ]
      ],
      "related": [
        {
          "word": "trainy"
        }
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    }
  ],
  "word": "train oil"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "train",
        "3": "oil",
        "id1": "oil",
        "t1": "train oil"
      },
      "expansion": "train (“train oil”) + oil",
      "name": "af"
    },
    {
      "args": {
        "1": "en",
        "2": "nl",
        "3": "traanolie",
        "4": "",
        "5": "whale oil",
        "nocap": "1"
      },
      "expansion": "partial calque of Dutch traanolie (“whale oil”)",
      "name": "partial calque"
    },
    {
      "args": {
        "1": "en",
        "2": "train",
        "id": "oil"
      },
      "expansion": "train",
      "name": "m"
    }
  ],
  "etymology_text": "From train (“train oil”) + oil, partial calque of Dutch traanolie (“whale oil”). See further etymology at train.",
  "forms": [
    {
      "form": "train oils",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "train oil (countable and uncountable, plural train oils)",
      "name": "en-noun"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "trainy"
    }
  ],
  "senses": [
    {
      "categories": [
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        "English countable nouns",
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        "English multiword terms",
        "English nouns",
        "English terms derived from Dutch",
        "English terms partially calqued from Dutch",
        "English uncountable nouns",
        "en:Whaling"
      ],
      "glosses": [
        "Oil obtained from the blubber of marine mammals, especially whale oil."
      ],
      "links": [
        [
          "Oil",
          "oil"
        ],
        [
          "obtain",
          "obtain"
        ],
        [
          "blubber",
          "blubber"
        ],
        [
          "marine mammal",
          "marine mammal"
        ],
        [
          "whale oil",
          "whale oil"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    }
  ],
  "word": "train oil"
}