"nipple shield" meaning in English

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  "etymology_text": "From nipple + shield. First use appears c. 1799 in the writings of Michael Underwood.",
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      "form": "nipple shields",
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  "lang_code": "en",
  "pos": "noun",
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          "langcode": "en",
          "name": "Breastfeeding",
          "orig": "en:Breastfeeding",
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      "glosses": [
        "A defence for the nipple worn by a breastfeeding woman."
      ],
      "id": "en-nipple_shield-en-noun-nvKqC09W",
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          "breastfeed",
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        "Michael Underwood (physician)"
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  "word": "nipple shield"
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  ],
  "etymology_text": "From nipple + shield. First use appears c. 1799 in the writings of Michael Underwood.",
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    {
      "form": "nipple shields",
      "tags": [
        "plural"
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        "A defence for the nipple worn by a breastfeeding woman."
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          "breastfeed",
          "breastfeed"
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        "Michael Underwood (physician)"
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