"free surface effect" meaning in English

{
  "forms": [
    {
      "form": "free surface effects",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "free surface effect"
      },
      "expansion": "free surface effect (plural free surface effects)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Mechanical engineering",
          "orig": "en:Mechanical engineering",
          "parents": [
            "Engineering",
            "Applied sciences",
            "Technology",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Physics",
          "orig": "en:Physics",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Vehicles",
          "orig": "en:Vehicles",
          "parents": [
            "Machines",
            "Transport",
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "The tendency of liquids and liquid-like aggregates to move in response to changes in the attitude of a craft's cargo holds, decks, or liquid tanks in reaction to operator-induced motions (or sea states caused by waves and wind acting upon the craft)."
      ],
      "id": "en-free_surface_effect-en-noun-E2BH8wOu",
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "mechanical engineering",
          "mechanical engineering"
        ],
        [
          "liquid-like",
          "liquid-like"
        ],
        [
          "aggregate",
          "aggregate"
        ],
        [
          "attitude",
          "attitude"
        ],
        [
          "craft",
          "craft"
        ],
        [
          "cargo hold",
          "cargo hold"
        ],
        [
          "deck",
          "deck"
        ]
      ],
      "raw_glosses": [
        "(physics, mechanical engineering) The tendency of liquids and liquid-like aggregates to move in response to changes in the attitude of a craft's cargo holds, decks, or liquid tanks in reaction to operator-induced motions (or sea states caused by waves and wind acting upon the craft)."
      ],
      "topics": [
        "engineering",
        "mechanical",
        "mechanical-engineering",
        "natural-sciences",
        "physical-sciences",
        "physics"
      ]
    }
  ],
  "word": "free surface effect"
}

{
  "forms": [
    {
      "form": "free surface effects",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "free surface effect"
      },
      "expansion": "free surface effect (plural free surface effects)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "en:Mechanical engineering",
        "en:Physics",
        "en:Vehicles"
      ],
      "glosses": [
        "The tendency of liquids and liquid-like aggregates to move in response to changes in the attitude of a craft's cargo holds, decks, or liquid tanks in reaction to operator-induced motions (or sea states caused by waves and wind acting upon the craft)."
      ],
      "links": [
        [
          "physics",
          "physics"
        ],
        [
          "mechanical engineering",
          "mechanical engineering"
        ],
        [
          "liquid-like",
          "liquid-like"
        ],
        [
          "aggregate",
          "aggregate"
        ],
        [
          "attitude",
          "attitude"
        ],
        [
          "craft",
          "craft"
        ],
        [
          "cargo hold",
          "cargo hold"
        ],
        [
          "deck",
          "deck"
        ]
      ],
      "raw_glosses": [
        "(physics, mechanical engineering) The tendency of liquids and liquid-like aggregates to move in response to changes in the attitude of a craft's cargo holds, decks, or liquid tanks in reaction to operator-induced motions (or sea states caused by waves and wind acting upon the craft)."
      ],
      "topics": [
        "engineering",
        "mechanical",
        "mechanical-engineering",
        "natural-sciences",
        "physical-sciences",
        "physics"
      ]
    }
  ],
  "word": "free surface effect"
}