"backflow" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "back",
        "3": "flow"
      },
      "expansion": "back + flow",
      "name": "compound"
    }
  ],
  "etymology_text": "back + flow",
  "forms": [
    {
      "form": "backflows",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "backflow (countable and uncountable, plural backflows)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "The flow of a fluid (through a pipe etc.) in a direction opposite to that which is normal or intended."
      ],
      "id": "en-backflow-en-noun-iX3Z8zYe",
      "links": [
        [
          "flow",
          "flow"
        ],
        [
          "fluid",
          "fluid"
        ],
        [
          "direction",
          "direction"
        ],
        [
          "opposite",
          "opposite"
        ],
        [
          "normal",
          "normal"
        ],
        [
          "intended",
          "intended"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    }
  ],
  "word": "backflow"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "back",
        "3": "flow"
      },
      "expansion": "back + flow",
      "name": "compound"
    }
  ],
  "etymology_text": "back + flow",
  "forms": [
    {
      "form": "backflows",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "backflowing",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "backflowed",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "backflowed",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "backflow (third-person singular simple present backflows, present participle backflowing, simple past and past participle backflowed)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "categories": [
        {
          "_dis": "38 62",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "To flow in the wrong or backward direction."
      ],
      "id": "en-backflow-en-verb-ryd-hATC"
    }
  ],
  "word": "backflow"
}

{
  "categories": [
    "English compound terms",
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English nouns",
    "English uncountable nouns",
    "English verbs"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "back",
        "3": "flow"
      },
      "expansion": "back + flow",
      "name": "compound"
    }
  ],
  "etymology_text": "back + flow",
  "forms": [
    {
      "form": "backflows",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "backflow (countable and uncountable, plural backflows)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "glosses": [
        "The flow of a fluid (through a pipe etc.) in a direction opposite to that which is normal or intended."
      ],
      "links": [
        [
          "flow",
          "flow"
        ],
        [
          "fluid",
          "fluid"
        ],
        [
          "direction",
          "direction"
        ],
        [
          "opposite",
          "opposite"
        ],
        [
          "normal",
          "normal"
        ],
        [
          "intended",
          "intended"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ]
    }
  ],
  "word": "backflow"
}

{
  "categories": [
    "English compound terms",
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English nouns",
    "English uncountable nouns",
    "English verbs"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "back",
        "3": "flow"
      },
      "expansion": "back + flow",
      "name": "compound"
    }
  ],
  "etymology_text": "back + flow",
  "forms": [
    {
      "form": "backflows",
      "tags": [
        "present",
        "singular",
        "third-person"
      ]
    },
    {
      "form": "backflowing",
      "tags": [
        "participle",
        "present"
      ]
    },
    {
      "form": "backflowed",
      "tags": [
        "participle",
        "past"
      ]
    },
    {
      "form": "backflowed",
      "tags": [
        "past"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "backflow (third-person singular simple present backflows, present participle backflowing, simple past and past participle backflowed)",
      "name": "en-verb"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "verb",
  "senses": [
    {
      "glosses": [
        "To flow in the wrong or backward direction."
      ]
    }
  ],
  "word": "backflow"
}