"metric-ounce" meaning in English

{
  "forms": [
    {
      "form": "metric-ounces",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "metric-ounce (plural metric-ounces)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "metric ounce"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1869 July, Decimal-Point (pseudonym), “The French and English Systems of Money-Weights and Measures” in The Pharmaceutical Journal and Transactions, Second Series, volume XI, № i, page 32",
          "text": "In our coppers we have fifths and tenths both of the pound and the ounce, so that a farthing thrown into the scale with our ounce is the equivalent (within one grain) to the so-called metric-ounce or sixteenth of 500 grammes, and with eight halfpence on the pound we get the half-kilo quite near enough for practical purposes."
        }
      ],
      "glosses": [
        "Alternative spelling of metric ounce"
      ],
      "id": "en-metric-ounce-en-noun-HHdpNXHO",
      "links": [
        [
          "metric ounce",
          "metric ounce#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "metric-ounce"
}

{
  "forms": [
    {
      "form": "metric-ounces",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "metric-ounce (plural metric-ounces)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "metric ounce"
        }
      ],
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns"
      ],
      "examples": [
        {
          "ref": "1869 July, Decimal-Point (pseudonym), “The French and English Systems of Money-Weights and Measures” in The Pharmaceutical Journal and Transactions, Second Series, volume XI, № i, page 32",
          "text": "In our coppers we have fifths and tenths both of the pound and the ounce, so that a farthing thrown into the scale with our ounce is the equivalent (within one grain) to the so-called metric-ounce or sixteenth of 500 grammes, and with eight halfpence on the pound we get the half-kilo quite near enough for practical purposes."
        }
      ],
      "glosses": [
        "Alternative spelling of metric ounce"
      ],
      "links": [
        [
          "metric ounce",
          "metric ounce#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "metric-ounce"
}