"Harvey ball" meaning in English

{
  "etymology_text": "Named after Harvey L. Poppel, generally credited with inventing them in the 1970s.",
  "forms": [
    {
      "form": "Harvey balls",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Harvey ball (plural Harvey balls)",
      "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 entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Any of a set of partially filled circular ideograms used to communicate qualitative information."
      ],
      "id": "en-Harvey_ball-en-noun-Lx0H6Txl",
      "links": [
        [
          "circular",
          "circular"
        ],
        [
          "ideogram",
          "ideogram"
        ],
        [
          "qualitative",
          "qualitative"
        ],
        [
          "information",
          "information"
        ]
      ],
      "wikipedia": [
        "Harvey ball"
      ]
    }
  ],
  "word": "Harvey ball"
}

{
  "etymology_text": "Named after Harvey L. Poppel, generally credited with inventing them in the 1970s.",
  "forms": [
    {
      "form": "Harvey balls",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Harvey ball (plural Harvey balls)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys"
      ],
      "glosses": [
        "Any of a set of partially filled circular ideograms used to communicate qualitative information."
      ],
      "links": [
        [
          "circular",
          "circular"
        ],
        [
          "ideogram",
          "ideogram"
        ],
        [
          "qualitative",
          "qualitative"
        ],
        [
          "information",
          "information"
        ]
      ],
      "wikipedia": [
        "Harvey ball"
      ]
    }
  ],
  "word": "Harvey ball"
}