"green caviar" meaning in English

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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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        {
          "kind": "lifeform",
          "langcode": "en",
          "name": "Green algae",
          "orig": "en:Green algae",
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          "ref": "2013, Fodor's Hong Kong: with a Side Trip to Macau:",
          "text": "Start with the umi-budo—an interesting variety of sea kelp shaped like bunches of grapes (the bubble-like appearance has also won it its “green caviar” nickname).",
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      "glosses": [
        "The edible seaweed Caulerpa lentillifera."
      ],
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          "seaweed",
          "seaweed"
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  "word": "green caviar"
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  "lang_code": "en",
  "pos": "noun",
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  "word": "green caviar"
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