"sergeant baker" meaning in English

{
  "etymology_text": "Probably named after Governor Phillip's orderly sergeant, William Baker. https://australianmuseum.net.au/Sergeant-Baker-Hime-purpurissatus-Richardson-1843/",
  "forms": [
    {
      "form": "sergeant bakers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "sergeant baker (plural sergeant bakers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Aulopiform fish",
          "orig": "en:Aulopiform fish",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "The fish Latropiscis purpurissatus, of Australia."
      ],
      "id": "en-sergeant_baker-en-noun-OWwoZ6oY",
      "links": [
        [
          "fish",
          "fish"
        ]
      ]
    }
  ],
  "word": "sergeant baker"
}

{
  "etymology_text": "Probably named after Governor Phillip's orderly sergeant, William Baker. https://australianmuseum.net.au/Sergeant-Baker-Hime-purpurissatus-Richardson-1843/",
  "forms": [
    {
      "form": "sergeant bakers",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "sergeant baker (plural sergeant bakers)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Entries using missing taxonomic name (species)",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Aulopiform fish"
      ],
      "glosses": [
        "The fish Latropiscis purpurissatus, of Australia."
      ],
      "links": [
        [
          "fish",
          "fish"
        ]
      ]
    }
  ],
  "word": "sergeant baker"
}