"James's powder" meaning in English

{
  "etymology_text": "Named after Dr. Robert James, an English physician.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "James's powder (uncountable)",
      "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 language name categories using raw markup",
          "parents": [
            "Entries with language name 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": "Antimony",
          "orig": "en:Antimony",
          "parents": [
            "Pnictogens",
            "Chemical elements",
            "Matter",
            "Chemistry",
            "Nature",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Medicine",
          "orig": "en:Medicine",
          "parents": [
            "Biology",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Pseudoscience",
          "orig": "en:Pseudoscience",
          "parents": [
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A powder consisting of one part oxide of antimony and two parts calcium phosphate, once falsely claimed to have medical benefits."
      ],
      "id": "en-James's_powder-en-noun-~lMzSDcB",
      "links": [
        [
          "medicine",
          "medicine"
        ],
        [
          "oxide",
          "oxide"
        ],
        [
          "antimony",
          "antimony"
        ],
        [
          "calcium",
          "calcium"
        ],
        [
          "phosphate",
          "phosphate"
        ]
      ],
      "raw_glosses": [
        "(medicine, archaic) A powder consisting of one part oxide of antimony and two parts calcium phosphate, once falsely claimed to have medical benefits."
      ],
      "synonyms": [
        {
          "word": "antimonial powder"
        },
        {
          "word": "fever powder"
        }
      ],
      "tags": [
        "archaic",
        "uncountable"
      ],
      "topics": [
        "medicine",
        "sciences"
      ],
      "wikipedia": [
        "Robert James (physician)"
      ]
    }
  ],
  "word": "James's powder"
}

{
  "etymology_text": "Named after Dr. Robert James, an English physician.",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "James's powder (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with archaic senses",
        "English terms with non-redundant non-automated sortkeys",
        "English uncountable nouns",
        "en:Antimony",
        "en:Medicine",
        "en:Pseudoscience"
      ],
      "glosses": [
        "A powder consisting of one part oxide of antimony and two parts calcium phosphate, once falsely claimed to have medical benefits."
      ],
      "links": [
        [
          "medicine",
          "medicine"
        ],
        [
          "oxide",
          "oxide"
        ],
        [
          "antimony",
          "antimony"
        ],
        [
          "calcium",
          "calcium"
        ],
        [
          "phosphate",
          "phosphate"
        ]
      ],
      "raw_glosses": [
        "(medicine, archaic) A powder consisting of one part oxide of antimony and two parts calcium phosphate, once falsely claimed to have medical benefits."
      ],
      "tags": [
        "archaic",
        "uncountable"
      ],
      "topics": [
        "medicine",
        "sciences"
      ],
      "wikipedia": [
        "Robert James (physician)"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "antimonial powder"
    },
    {
      "word": "fever powder"
    }
  ],
  "word": "James's powder"
}