"in steam" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "prepositional phrase"
      },
      "expansion": "in steam",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prep_phrase",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1942 March, “Notes and News: Locomotive Notes”, in Railway Magazine, page 93",
          "text": "Apart from brief intervals for watering and coaling, No. 2395 is continuously in steam each week from 4 a.m. on Monday until 3 a.m. on the following Sunday.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Having steam in its boiler and ready for work."
      ],
      "id": "en-in_steam-en-prep_phrase-qfMBw~Kn",
      "links": [
        [
          "boiler",
          "boiler"
        ]
      ],
      "raw_glosses": [
        "(of a steam locomotive) Having steam in its boiler and ready for work."
      ],
      "raw_tags": [
        "of a steam locomotive"
      ],
      "related": [
        {
          "word": "one engine in steam"
        }
      ]
    }
  ],
  "word": "in steam"
}

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "prepositional phrase"
      },
      "expansion": "in steam",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "prep_phrase",
  "related": [
    {
      "word": "one engine in steam"
    }
  ],
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English prepositional phrases",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "1942 March, “Notes and News: Locomotive Notes”, in Railway Magazine, page 93",
          "text": "Apart from brief intervals for watering and coaling, No. 2395 is continuously in steam each week from 4 a.m. on Monday until 3 a.m. on the following Sunday.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Having steam in its boiler and ready for work."
      ],
      "links": [
        [
          "boiler",
          "boiler"
        ]
      ],
      "raw_glosses": [
        "(of a steam locomotive) Having steam in its boiler and ready for work."
      ],
      "raw_tags": [
        "of a steam locomotive"
      ]
    }
  ],
  "word": "in steam"
}