"underdrain" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "under",
        "3": "drain"
      },
      "expansion": "under- + drain",
      "name": "prefix"
    }
  ],
  "etymology_text": "under- + drain",
  "forms": [
    {
      "form": "underdrains",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "underdrain (plural underdrains)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "_dis": "51 49",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "47 53",
          "kind": "other",
          "name": "English terms prefixed with under-",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "An underground drain or trench with openings through which the water may percolate from the soil or ground above."
      ],
      "id": "en-underdrain-en-noun-NT3dox0M",
      "links": [
        [
          "underground",
          "underground"
        ],
        [
          "drain",
          "drain"
        ],
        [
          "trench",
          "trench"
        ],
        [
          "opening",
          "opening"
        ],
        [
          "water",
          "water"
        ],
        [
          "percolate",
          "percolate"
        ],
        [
          "soil",
          "soil"
        ]
      ]
    }
  ],
  "word": "underdrain"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "under",
        "3": "drain"
      },
      "expansion": "under- + drain",
      "name": "prefix"
    }
  ],
  "etymology_text": "under- + drain",
  "forms": [
    {
      "form": "underdrains",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "underdraining",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "underdrained",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "underdrained",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "underdrain (third-person singular simple present underdrains, present participle underdraining, simple past and past participle underdrained)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "_dis": "51 49",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "47 53",
          "kind": "other",
          "name": "English terms prefixed with under-",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "To drain by forming an underdrain or underdrains in."
      ],
      "id": "en-underdrain-en-verb-HjcHjNhD",
      "links": [
        [
          "drain",
          "drain"
        ]
      ],
      "raw_glosses": [
        "(transitive) To drain by forming an underdrain or underdrains in."
      ],
      "related": [
        {
          "word": "underdrainage"
        }
      ],
      "tags": [
        "transitive"
      ]
    }
  ],
  "word": "underdrain"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English nouns",
    "English terms prefixed with under-",
    "English verbs"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "under",
        "3": "drain"
      },
      "expansion": "under- + drain",
      "name": "prefix"
    }
  ],
  "etymology_text": "under- + drain",
  "forms": [
    {
      "form": "underdrains",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "underdrain (plural underdrains)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "An underground drain or trench with openings through which the water may percolate from the soil or ground above."
      ],
      "links": [
        [
          "underground",
          "underground"
        ],
        [
          "drain",
          "drain"
        ],
        [
          "trench",
          "trench"
        ],
        [
          "opening",
          "opening"
        ],
        [
          "water",
          "water"
        ],
        [
          "percolate",
          "percolate"
        ],
        [
          "soil",
          "soil"
        ]
      ]
    }
  ],
  "word": "underdrain"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English nouns",
    "English terms prefixed with under-",
    "English verbs"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "under",
        "3": "drain"
      },
      "expansion": "under- + drain",
      "name": "prefix"
    }
  ],
  "etymology_text": "under- + drain",
  "forms": [
    {
      "form": "underdrains",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "underdraining",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "underdrained",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "underdrained",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "underdrain (third-person singular simple present underdrains, present participle underdraining, simple past and past participle underdrained)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "related": [
    {
      "word": "underdrainage"
    }
  ],
  "senses": [
    {
      "categories": [
        "English transitive verbs"
      ],
      "glosses": [
        "To drain by forming an underdrain or underdrains in."
      ],
      "links": [
        [
          "drain",
          "drain"
        ]
      ],
      "raw_glosses": [
        "(transitive) To drain by forming an underdrain or underdrains in."
      ],
      "tags": [
        "transitive"
      ]
    }
  ],
  "word": "underdrain"
}