"space marine" meaning in English

{
  "etymology_text": "Named after the marines, infantry soldiers who serve in coastal areas to assist naval forces.\nThe earliest usage of this term was from Bob Olsen's short story \"Captain Brink of the Space Marines\" in 1932, in which the titular soldiers rescue celebrity twins on Saturn's moon, Titan.",
  "forms": [
    {
      "form": "space marines",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "space marine (plural space marines)",
      "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": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Science fiction",
          "orig": "en:Science fiction",
          "parents": [
            "Fiction",
            "Speculative fiction",
            "Artistic works",
            "Genres",
            "Art",
            "Entertainment",
            "Culture",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Stock characters",
          "orig": "en:Stock characters",
          "parents": [
            "Fictional characters",
            "Fiction",
            "Artistic works",
            "Art",
            "Culture",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Warhammer",
          "orig": "en:Warhammer",
          "parents": [
            "Board games",
            "Fantasy",
            "Science fiction",
            "Tabletop games",
            "Fiction",
            "Speculative fiction",
            "Games",
            "Artistic works",
            "Genres",
            "Recreation",
            "Art",
            "Entertainment",
            "Human activity",
            "Culture",
            "Human behaviour",
            "Society",
            "Human",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "a soldier who fights in outer space or extraterrestrial worlds."
      ],
      "id": "en-space_marine-en-noun-HCXVEAj8",
      "links": [
        [
          "science fiction",
          "science fiction"
        ],
        [
          "soldier",
          "soldier"
        ],
        [
          "extraterrestrial",
          "extraterrestrial"
        ]
      ],
      "raw_glosses": [
        "(science fiction) a soldier who fights in outer space or extraterrestrial worlds."
      ],
      "topics": [
        "literature",
        "media",
        "publishing",
        "science-fiction"
      ],
      "translations": [
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "kosmíčeskij desánt",
          "sense": "science fiction super-soldiers",
          "tags": [
            "masculine"
          ],
          "word": "косми́ческий деса́нт"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "kosmodesánt",
          "sense": "science fiction super-soldiers",
          "word": "космодеса́нт"
        }
      ],
      "wikipedia": [
        "space marine"
      ]
    }
  ],
  "word": "space marine"
}

{
  "etymology_text": "Named after the marines, infantry soldiers who serve in coastal areas to assist naval forces.\nThe earliest usage of this term was from Bob Olsen's short story \"Captain Brink of the Space Marines\" in 1932, in which the titular soldiers rescue celebrity twins on Saturn's moon, Titan.",
  "forms": [
    {
      "form": "space marines",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "space marine (plural space marines)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "en:Science fiction",
        "en:Stock characters",
        "en:Warhammer"
      ],
      "glosses": [
        "a soldier who fights in outer space or extraterrestrial worlds."
      ],
      "links": [
        [
          "science fiction",
          "science fiction"
        ],
        [
          "soldier",
          "soldier"
        ],
        [
          "extraterrestrial",
          "extraterrestrial"
        ]
      ],
      "raw_glosses": [
        "(science fiction) a soldier who fights in outer space or extraterrestrial worlds."
      ],
      "topics": [
        "literature",
        "media",
        "publishing",
        "science-fiction"
      ],
      "wikipedia": [
        "space marine"
      ]
    }
  ],
  "translations": [
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "kosmíčeskij desánt",
      "sense": "science fiction super-soldiers",
      "tags": [
        "masculine"
      ],
      "word": "косми́ческий деса́нт"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "kosmodesánt",
      "sense": "science fiction super-soldiers",
      "word": "космодеса́нт"
    }
  ],
  "word": "space marine"
}