"nil by mouth" meaning in English

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          "ref": "1936, Henry [Hamilton] Bailey, Emergency Surgery, John Wright, page 109:",
          "text": "Synopsis of After-treatment in all Cases of Perforated Peptic Ulcer.—After recovery from the post-operative shock, raise gradually into high Fowler's position. 1st 24 Hours.—Nil by mouth. Saline with glucose continuously.",
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        {
          "ref": "1976, Carl Edmonds, Christopher Lowry, John Pennefather, Diving and Subaquatic Medicine, Diving Medical Centre, →ISBN, page 263:",
          "text": "With total paralysis, the following regime is needed; intravenous nutrition (nil by mouth), eye toilets and protection, attention to pressure areas.",
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          "ref": "2022, Rachel Varughese, Anna Mathew, editor, Clinical Guide to Paediatrics, Wiley, →ISBN, page 218:",
          "text": "Patients suspected of having appendicitis should be kept nil by mouth, to prepare for surgery.",
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      "glosses": [
        "Synonym of nil per os (“nothing may be eaten or drunk”)."
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        [
          "nothing",
          "nothing"
        ],
        [
          "eat",
          "eat"
        ],
        [
          "drunk",
          "drink"
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      ],
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        {
          "extra": "nothing may be eaten or drunk",
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          "word": "nil per os"
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          "word": "NBM"
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  "word": "nil by mouth"
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          "ref": "1936, Henry [Hamilton] Bailey, Emergency Surgery, John Wright, page 109:",
          "text": "Synopsis of After-treatment in all Cases of Perforated Peptic Ulcer.—After recovery from the post-operative shock, raise gradually into high Fowler's position. 1st 24 Hours.—Nil by mouth. Saline with glucose continuously.",
          "type": "quote"
        },
        {
          "ref": "1976, Carl Edmonds, Christopher Lowry, John Pennefather, Diving and Subaquatic Medicine, Diving Medical Centre, →ISBN, page 263:",
          "text": "With total paralysis, the following regime is needed; intravenous nutrition (nil by mouth), eye toilets and protection, attention to pressure areas.",
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          "ref": "2022, Rachel Varughese, Anna Mathew, editor, Clinical Guide to Paediatrics, Wiley, →ISBN, page 218:",
          "text": "Patients suspected of having appendicitis should be kept nil by mouth, to prepare for surgery.",
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        "Synonym of nil per os (“nothing may be eaten or drunk”)."
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          "nothing",
          "nothing"
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          "eat",
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          "drunk",
          "drink"
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