"precolumn" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "pre",
        "3": "column"
      },
      "expansion": "pre- + column",
      "name": "prefix"
    }
  ],
  "etymology_text": "pre- + column",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "precolumn (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "_dis": "48 52",
          "kind": "other",
          "name": "English terms prefixed with pre-",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "ref": "2015 July 21, “Roflumilast Prevents the Metabolic Effects of Bleomycin-Induced Fibrosis in a Murine Model”, in PLOS ONE, →DOI",
          "text": "The stationary phase included precolumn and column Sherisorb ODS1 5μm (4.6 x 250 mm; Waters Barcelona, Spain), and a mobile phase consisting in 1.5 mmol/L potassium hydrogen phosphate at pH 4.6 with 10% methanol, at a flow rate of 1 mL/min at room temperature.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Situated before the column of a chromatograph"
      ],
      "id": "en-precolumn-en-adj-g7oZNM1D",
      "links": [
        [
          "column",
          "column"
        ],
        [
          "chromatograph",
          "chromatograph"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "precolumn"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "pre",
        "3": "column"
      },
      "expansion": "pre- + column",
      "name": "prefix"
    }
  ],
  "etymology_text": "pre- + column",
  "forms": [
    {
      "form": "precolumns",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "precolumn (plural precolumns)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "10 90",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "48 52",
          "kind": "other",
          "name": "English terms prefixed with pre-",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A chromatographic column used as an initial filter"
      ],
      "id": "en-precolumn-en-noun-1CoE33Nw",
      "links": [
        [
          "chromatographic",
          "chromatographic"
        ],
        [
          "filter",
          "filter"
        ]
      ]
    }
  ],
  "word": "precolumn"
}

{
  "categories": [
    "English adjectives",
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English nouns",
    "English terms prefixed with pre-",
    "English uncomparable adjectives"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "pre",
        "3": "column"
      },
      "expansion": "pre- + column",
      "name": "prefix"
    }
  ],
  "etymology_text": "pre- + column",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "precolumn (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "2015 July 21, “Roflumilast Prevents the Metabolic Effects of Bleomycin-Induced Fibrosis in a Murine Model”, in PLOS ONE, →DOI",
          "text": "The stationary phase included precolumn and column Sherisorb ODS1 5μm (4.6 x 250 mm; Waters Barcelona, Spain), and a mobile phase consisting in 1.5 mmol/L potassium hydrogen phosphate at pH 4.6 with 10% methanol, at a flow rate of 1 mL/min at room temperature.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Situated before the column of a chromatograph"
      ],
      "links": [
        [
          "column",
          "column"
        ],
        [
          "chromatograph",
          "chromatograph"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "word": "precolumn"
}

{
  "categories": [
    "English adjectives",
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English nouns",
    "English terms prefixed with pre-",
    "English uncomparable adjectives"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "pre",
        "3": "column"
      },
      "expansion": "pre- + column",
      "name": "prefix"
    }
  ],
  "etymology_text": "pre- + column",
  "forms": [
    {
      "form": "precolumns",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "precolumn (plural precolumns)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "A chromatographic column used as an initial filter"
      ],
      "links": [
        [
          "chromatographic",
          "chromatographic"
        ],
        [
          "filter",
          "filter"
        ]
      ]
    }
  ],
  "word": "precolumn"
}