"French drain" meaning in English

{
  "etymology_text": "Perhaps after Henry French of Concord, MA",
  "forms": [
    {
      "form": "French drains",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "French drain (plural French drains)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "A shallow trench, sometimes lined with tile or containing a perforated pipe, backfilled with gravel and then covered over, used to collect and channel runoff water."
      ],
      "id": "en-French_drain-en-noun-ETDq8lO7"
    },
    {
      "categories": [
        {
          "_dis": "29 71",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "32 68",
          "kind": "other",
          "name": "English entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        },
        {
          "_dis": "31 69",
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "A gravel-filled corridor with a perforated pipe running through it that runs against the foundation footings of a building, used to collect ground water and drain it away from the building's interior."
      ],
      "id": "en-French_drain-en-noun-w7U3hlMh",
      "synonyms": [
        {
          "_dis1": "18 82",
          "sense": "foundation drainage",
          "word": "weeping tile"
        },
        {
          "_dis1": "18 82",
          "sense": "foundation drainage",
          "word": "foundation drain"
        },
        {
          "_dis1": "18 82",
          "sense": "foundation drainage",
          "word": "rubble drain"
        }
      ],
      "translations": [
        {
          "_dis1": "18 82",
          "code": "fr",
          "lang": "French",
          "sense": "foundation drainage",
          "word": "drain français"
        },
        {
          "_dis1": "18 82",
          "code": "fr",
          "lang": "French",
          "sense": "foundation drainage",
          "word": "drain de fondation"
        }
      ]
    }
  ],
  "wikipedia": [
    "French drain"
  ],
  "word": "French drain"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English entries with language name categories using raw markup",
    "English eponyms",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "English terms with non-redundant non-automated sortkeys"
  ],
  "etymology_text": "Perhaps after Henry French of Concord, MA",
  "forms": [
    {
      "form": "French drains",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "French drain (plural French drains)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "A shallow trench, sometimes lined with tile or containing a perforated pipe, backfilled with gravel and then covered over, used to collect and channel runoff water."
      ]
    },
    {
      "glosses": [
        "A gravel-filled corridor with a perforated pipe running through it that runs against the foundation footings of a building, used to collect ground water and drain it away from the building's interior."
      ]
    }
  ],
  "synonyms": [
    {
      "sense": "foundation drainage",
      "word": "weeping tile"
    },
    {
      "sense": "foundation drainage",
      "word": "foundation drain"
    },
    {
      "sense": "foundation drainage",
      "word": "rubble drain"
    }
  ],
  "translations": [
    {
      "code": "fr",
      "lang": "French",
      "sense": "foundation drainage",
      "word": "drain français"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "foundation drainage",
      "word": "drain de fondation"
    }
  ],
  "wikipedia": [
    "French drain"
  ],
  "word": "French drain"
}