"ground-glass" meaning in English

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  "lang_code": "en",
  "pos": "noun",
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          "ref": "1888, Henry James, A London Life:",
          "text": "It was the hand of a master that Laura seemed to see in her face, the witty expression of which shone like a lamp through the ground-glass of her good breeding; nature was always an artist, but not so much of an artist as that.",
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      "glosses": [
        "Alternative spelling of ground glass"
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  "word": "ground-glass"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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          "word": "ground glass"
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      "examples": [
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          "ref": "1888, Henry James, A London Life:",
          "text": "It was the hand of a master that Laura seemed to see in her face, the witty expression of which shone like a lamp through the ground-glass of her good breeding; nature was always an artist, but not so much of an artist as that.",
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  "word": "ground-glass"
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