"fish scale" meaning in English

{
  "etymology_text": "From the scales of fish, due to the silver colour and the thinness of the coin.",
  "forms": [
    {
      "form": "fish scales",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "fish scale (countable and uncountable, plural fish scales)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "fishscale"
        }
      ],
      "glosses": [
        "Alternative form of fishscale."
      ],
      "id": "en-fish_scale-en-noun-tBPaTPaH",
      "links": [
        [
          "fishscale",
          "fishscale#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative",
        "countable",
        "uncountable"
      ]
    },
    {
      "categories": [
        {
          "kind": "other",
          "name": "Canadian English",
          "parents": [],
          "source": "w"
        },
        {
          "_dis": "25 75",
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "13 87",
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "8 92",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "glosses": [
        "An early 5 cent coin of Canada; an early Canadian nickel."
      ],
      "id": "en-fish_scale-en-noun-rTpyGxxI",
      "links": [
        [
          "coin",
          "coin"
        ]
      ],
      "raw_glosses": [
        "(slang, Canada) An early 5 cent coin of Canada; an early Canadian nickel."
      ],
      "tags": [
        "Canada",
        "countable",
        "slang",
        "uncountable"
      ]
    }
  ],
  "word": "fish scale"
}

{
  "categories": [
    "English countable nouns",
    "English entries with incorrect language header",
    "English lemmas",
    "English multiword terms",
    "English nouns",
    "English uncountable nouns",
    "Pages with 1 entry",
    "Pages with entries"
  ],
  "etymology_text": "From the scales of fish, due to the silver colour and the thinness of the coin.",
  "forms": [
    {
      "form": "fish scales",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "fish scale (countable and uncountable, plural fish scales)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "fishscale"
        }
      ],
      "glosses": [
        "Alternative form of fishscale."
      ],
      "links": [
        [
          "fishscale",
          "fishscale#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative",
        "countable",
        "uncountable"
      ]
    },
    {
      "categories": [
        "Canadian English",
        "English slang"
      ],
      "glosses": [
        "An early 5 cent coin of Canada; an early Canadian nickel."
      ],
      "links": [
        [
          "coin",
          "coin"
        ]
      ],
      "raw_glosses": [
        "(slang, Canada) An early 5 cent coin of Canada; an early Canadian nickel."
      ],
      "tags": [
        "Canada",
        "countable",
        "slang",
        "uncountable"
      ]
    }
  ],
  "word": "fish scale"
}