"Greek numerals" meaning in English

{
  "forms": [
    {
      "form": "Greek numeral",
      "tags": [
        "singular"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "p",
        "head": "Greek numerals",
        "sg": "Greek numeral"
      },
      "expansion": "Greek numerals pl (normally plural, singular Greek numeral)",
      "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 pluralia tantum",
          "parents": [
            "Pluralia tantum",
            "Nouns",
            "Lemmas"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A system of numerals represented by letters of the Greek alphabet. These are used for special purposes, where in English Roman numerals might be used. The numerals are formed by the addition of a mark to the upper or lower case letter, i.e. Γ΄, δ΄, θ΄. In addition to the usual Greek letters three additional symbols are used: stigma (ϛ), koppa (ϟ) and sampi (ϡ); stigma (Ϛ or ϛ) may also be represented by ΣΤ΄ or στ΄."
      ],
      "id": "en-Greek_numerals-en-noun-KP38QouT",
      "links": [
        [
          "numeral",
          "numeral"
        ],
        [
          "Greek alphabet",
          "Greek alphabet"
        ],
        [
          "Roman numerals",
          "Roman numerals"
        ],
        [
          "upper",
          "upper case"
        ],
        [
          "lower case",
          "lower case"
        ],
        [
          "Greek letters",
          "Greek letters"
        ],
        [
          "stigma",
          "stigma"
        ],
        [
          "koppa",
          "koppa"
        ],
        [
          "sampi",
          "sampi"
        ]
      ],
      "tags": [
        "plural",
        "plural-normally"
      ]
    }
  ],
  "word": "Greek numerals"
}

{
  "forms": [
    {
      "form": "Greek numeral",
      "tags": [
        "singular"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "p",
        "head": "Greek numerals",
        "sg": "Greek numeral"
      },
      "expansion": "Greek numerals pl (normally plural, singular Greek numeral)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English pluralia tantum",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "A system of numerals represented by letters of the Greek alphabet. These are used for special purposes, where in English Roman numerals might be used. The numerals are formed by the addition of a mark to the upper or lower case letter, i.e. Γ΄, δ΄, θ΄. In addition to the usual Greek letters three additional symbols are used: stigma (ϛ), koppa (ϟ) and sampi (ϡ); stigma (Ϛ or ϛ) may also be represented by ΣΤ΄ or στ΄."
      ],
      "links": [
        [
          "numeral",
          "numeral"
        ],
        [
          "Greek alphabet",
          "Greek alphabet"
        ],
        [
          "Roman numerals",
          "Roman numerals"
        ],
        [
          "upper",
          "upper case"
        ],
        [
          "lower case",
          "lower case"
        ],
        [
          "Greek letters",
          "Greek letters"
        ],
        [
          "stigma",
          "stigma"
        ],
        [
          "koppa",
          "koppa"
        ],
        [
          "sampi",
          "sampi"
        ]
      ],
      "tags": [
        "plural",
        "plural-normally"
      ]
    }
  ],
  "word": "Greek numerals"
}