"eye black" meaning in English

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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "a grease smeared under the eyes of sports players to reduce glare from sunlight or stadium lights."
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      "id": "en-eye_black-en-noun-A9YKG2zx",
      "raw_glosses": [
        "(US) a grease smeared under the eyes of sports players to reduce glare from sunlight or stadium lights."
      ],
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  "word": "eye black"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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      "glosses": [
        "a grease smeared under the eyes of sports players to reduce glare from sunlight or stadium lights."
      ],
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        "(US) a grease smeared under the eyes of sports players to reduce glare from sunlight or stadium lights."
      ],
      "tags": [
        "US",
        "uncountable"
      ]
    }
  ],
  "word": "eye black"
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