"photon sail" meaning in English

{
  "forms": [
    {
      "form": "photon sails",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "photon sail (plural photon sails)",
      "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",
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Astronautics",
          "orig": "en:Astronautics",
          "parents": [
            "Applied sciences",
            "Space",
            "Sciences",
            "Nature",
            "All topics",
            "Fundamental"
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        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Light",
          "orig": "en:Light",
          "parents": [
            "Energy",
            "Nature",
            "All topics",
            "Fundamental"
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          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Space access",
          "orig": "en:Space access",
          "parents": [
            "Astronautics",
            "Applied sciences",
            "Space",
            "Sciences",
            "Nature",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A solar sail."
      ],
      "id": "en-photon_sail-en-noun-86L796sh",
      "links": [
        [
          "astronautics",
          "astronautics"
        ],
        [
          "solar sail",
          "solar sail"
        ]
      ],
      "raw_glosses": [
        "(astronautics) A solar sail."
      ],
      "synonyms": [
        {
          "word": "light sail"
        },
        {
          "word": "solar sail"
        }
      ],
      "topics": [
        "aerospace",
        "astronautics",
        "business",
        "engineering",
        "natural-sciences",
        "physical-sciences"
      ],
      "translations": [
        {
          "code": "de",
          "lang": "German",
          "sense": "solar sail",
          "tags": [
            "neuter"
          ],
          "word": "Photonensegel"
        }
      ]
    }
  ],
  "word": "photon sail"
}

{
  "forms": [
    {
      "form": "photon sails",
      "tags": [
        "plural"
      ]
    }
  ],
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      "expansion": "photon sail (plural photon sails)",
      "name": "en-noun"
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  "lang_code": "en",
  "pos": "noun",
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        "Pages with 1 entry",
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        "Terms with German translations",
        "en:Astronautics",
        "en:Light",
        "en:Space access"
      ],
      "glosses": [
        "A solar sail."
      ],
      "links": [
        [
          "astronautics",
          "astronautics"
        ],
        [
          "solar sail",
          "solar sail"
        ]
      ],
      "raw_glosses": [
        "(astronautics) A solar sail."
      ],
      "topics": [
        "aerospace",
        "astronautics",
        "business",
        "engineering",
        "natural-sciences",
        "physical-sciences"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "light sail"
    },
    {
      "word": "solar sail"
    }
  ],
  "translations": [
    {
      "code": "de",
      "lang": "German",
      "sense": "solar sail",
      "tags": [
        "neuter"
      ],
      "word": "Photonensegel"
    }
  ],
  "word": "photon sail"
}