"downwash" meaning in English

{
  "antonyms": [
    {
      "word": "upwash"
    }
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "down",
        "3": "wash"
      },
      "expansion": "down- + wash",
      "name": "prefix"
    }
  ],
  "etymology_text": "From down- + wash.",
  "forms": [
    {
      "form": "downwashes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "downwash (plural downwashes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "_dis1": "0 0",
      "word": "backwash"
    }
  ],
  "senses": [
    {
      "categories": [
        {
          "_dis": "84 16",
          "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 down-",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "85 15",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "91 9",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "89 11",
          "kind": "topical",
          "langcode": "en",
          "name": "Aviation",
          "orig": "en:Aviation",
          "parents": [
            "Aeronautics",
            "Transport",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "downward air turbulence caused by a propeller or jet, but especially by helicopter blades"
      ],
      "id": "en-downwash-en-noun-xO9St-G-",
      "links": [
        [
          "downward",
          "downward"
        ],
        [
          "air",
          "air"
        ],
        [
          "turbulence",
          "turbulence"
        ],
        [
          "propeller",
          "propeller"
        ],
        [
          "jet",
          "jet"
        ],
        [
          "helicopter",
          "helicopter"
        ],
        [
          "blade",
          "blade"
        ]
      ]
    },
    {
      "categories": [
        {
          "_dis": "47 53",
          "kind": "other",
          "name": "English terms prefixed with down-",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "ref": "2008, John S. Denker, How It Flies:",
          "text": "There is significant upwash ahead of the wing and even more downwash behind the wing.",
          "type": "quote"
        }
      ],
      "glosses": [
        "The downward motion of air as a result of eddies behind a wing or chimney, etc."
      ],
      "id": "en-downwash-en-noun-4Hcj4rgS",
      "links": [
        [
          "motion",
          "motion"
        ],
        [
          "eddies",
          "eddy"
        ],
        [
          "wing",
          "wing"
        ],
        [
          "chimney",
          "chimney"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-ɒʃ"
    }
  ],
  "wikipedia": [
    "downwash"
  ],
  "word": "downwash"
}

{
  "antonyms": [
    {
      "word": "upwash"
    }
  ],
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English nouns",
    "English terms prefixed with down-",
    "Pages with 1 entry",
    "Pages with entries",
    "Rhymes:English/ɒʃ",
    "Rhymes:English/ɒʃ/2 syllables",
    "en:Aviation"
  ],
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "down",
        "3": "wash"
      },
      "expansion": "down- + wash",
      "name": "prefix"
    }
  ],
  "etymology_text": "From down- + wash.",
  "forms": [
    {
      "form": "downwashes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "downwash (plural downwashes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "backwash"
    }
  ],
  "senses": [
    {
      "glosses": [
        "downward air turbulence caused by a propeller or jet, but especially by helicopter blades"
      ],
      "links": [
        [
          "downward",
          "downward"
        ],
        [
          "air",
          "air"
        ],
        [
          "turbulence",
          "turbulence"
        ],
        [
          "propeller",
          "propeller"
        ],
        [
          "jet",
          "jet"
        ],
        [
          "helicopter",
          "helicopter"
        ],
        [
          "blade",
          "blade"
        ]
      ]
    },
    {
      "categories": [
        "English terms with quotations",
        "Quotation templates to be cleaned"
      ],
      "examples": [
        {
          "ref": "2008, John S. Denker, How It Flies:",
          "text": "There is significant upwash ahead of the wing and even more downwash behind the wing.",
          "type": "quote"
        }
      ],
      "glosses": [
        "The downward motion of air as a result of eddies behind a wing or chimney, etc."
      ],
      "links": [
        [
          "motion",
          "motion"
        ],
        [
          "eddies",
          "eddy"
        ],
        [
          "wing",
          "wing"
        ],
        [
          "chimney",
          "chimney"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-ɒʃ"
    }
  ],
  "wikipedia": [
    "downwash"
  ],
  "word": "downwash"
}