"gravitational keyhole" meaning in English

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  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "A tiny region of space where a planet's gravity would alter the orbit of a passing asteroid such that the asteroid would collide with that planet on a given future orbital pass."
      ],
      "id": "en-gravitational_keyhole-en-noun-rU0tgq-W",
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          "space",
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        ],
        [
          "planet",
          "planet"
        ],
        [
          "gravity",
          "gravity"
        ],
        [
          "orbit",
          "orbit"
        ],
        [
          "asteroid",
          "asteroid"
        ],
        [
          "collide",
          "collide"
        ],
        [
          "orbital",
          "orbital"
        ]
      ],
      "raw_glosses": [
        "(astronomy) A tiny region of space where a planet's gravity would alter the orbit of a passing asteroid such that the asteroid would collide with that planet on a given future orbital pass."
      ],
      "topics": [
        "astronomy",
        "natural-sciences"
      ],
      "translations": [
        {
          "code": "hu",
          "lang": "Hungarian",
          "sense": "tiny region of space",
          "word": "gravitációs kulcslyuk"
        }
      ],
      "wikipedia": [
        "gravitational keyhole"
      ]
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  "word": "gravitational keyhole"
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        "A tiny region of space where a planet's gravity would alter the orbit of a passing asteroid such that the asteroid would collide with that planet on a given future orbital pass."
      ],
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        [
          "astronomy",
          "astronomy"
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          "space",
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          "planet",
          "planet"
        ],
        [
          "gravity",
          "gravity"
        ],
        [
          "orbit",
          "orbit"
        ],
        [
          "asteroid",
          "asteroid"
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        [
          "collide",
          "collide"
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        "(astronomy) A tiny region of space where a planet's gravity would alter the orbit of a passing asteroid such that the asteroid would collide with that planet on a given future orbital pass."
      ],
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        "astronomy",
        "natural-sciences"
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  "translations": [
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      "lang": "Hungarian",
      "sense": "tiny region of space",
      "word": "gravitációs kulcslyuk"
    }
  ],
  "word": "gravitational keyhole"
}