"IEM" meaning in English

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  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "ion exchange membrane"
        }
      ],
      "categories": [],
      "glosses": [
        "Initialism of ion exchange membrane."
      ],
      "id": "en-IEM-en-noun-9quP4HwT",
      "links": [
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        {
          "word": "inborn error of metabolism"
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          "langcode": "en",
          "name": "Medicine",
          "orig": "en:Medicine",
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            "Body",
            "Fundamental"
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      "glosses": [
        "Initialism of inborn error of metabolism."
      ],
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          "medicine",
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          "inborn error of metabolism",
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      "raw_glosses": [
        "(medicine) Initialism of inborn error of metabolism."
      ],
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      "topics": [
        "medicine",
        "sciences"
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    },
    {
      "alt_of": [
        {
          "word": "in-ear monitor"
        }
      ],
      "categories": [
        {
          "_dis": "38 7 55",
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          "source": "w+disamb"
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          "_dis": "38 4 58",
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          "name": "Pages with 1 entry",
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          "source": "w+disamb"
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          "_dis": "38 3 59",
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          "parents": [],
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        }
      ],
      "glosses": [
        "Initialism of in-ear monitor."
      ],
      "id": "en-IEM-en-noun-e2iqDjUf",
      "links": [
        [
          "in-ear monitor",
          "in-ear monitor#English"
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      "tags": [
        "abbreviation",
        "alt-of",
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    }
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  "word": "IEM"
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  "forms": [
    {
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        "plural"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "ion exchange membrane"
        }
      ],
      "categories": [
        "English initialisms"
      ],
      "glosses": [
        "Initialism of ion exchange membrane."
      ],
      "links": [
        [
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      ],
      "tags": [
        "abbreviation",
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          "word": "inborn error of metabolism"
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      "glosses": [
        "Initialism of inborn error of metabolism."
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        "(medicine) Initialism of inborn error of metabolism."
      ],
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        "initialism"
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        "medicine",
        "sciences"
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    {
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        {
          "word": "in-ear monitor"
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        "English initialisms"
      ],
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  "word": "IEM"
}