"乳頭" meaning in Japanese

{
  "forms": [
    {
      "form": "乳頭",
      "ruby": [
        [
          "乳",
          "にゅう"
        ],
        [
          "頭",
          "とう"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "nyūtō",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "にゅうとう"
      },
      "expansion": "乳(にゅう)頭(とう) • (nyūtō)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Japanese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese links with redundant wikilinks",
          "parents": [
            "Links with redundant wikilinks",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Japanese terms with redundant sortkeys",
          "parents": [
            "Terms with redundant sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "ja",
          "name": "Anatomy",
          "orig": "ja:Anatomy",
          "parents": [
            "Biology",
            "Medicine",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "nipple"
      ],
      "id": "en-乳頭-ja-noun-2E9pH8SY",
      "links": [
        [
          "anatomy",
          "anatomy"
        ],
        [
          "nipple",
          "nipple"
        ]
      ],
      "raw_glosses": [
        "(anatomy) nipple"
      ],
      "synonyms": [
        {
          "roman": "chikubi",
          "ruby": [
            [
              "乳首",
              "ちくび"
            ]
          ],
          "word": "乳首"
        }
      ],
      "topics": [
        "anatomy",
        "medicine",
        "sciences"
      ]
    }
  ],
  "sounds": [
    {
      "other": "にゅうとー"
    },
    {
      "ipa": "[ɲ̟ɯ̟ᵝːto̞ː]"
    }
  ],
  "word": "乳頭"
}

{
  "forms": [
    {
      "form": "乳頭",
      "ruby": [
        [
          "乳",
          "にゅう"
        ],
        [
          "頭",
          "とう"
        ]
      ],
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "nyūtō",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "にゅうとう"
      },
      "expansion": "乳(にゅう)頭(とう) • (nyūtō)",
      "name": "ja-noun"
    }
  ],
  "lang": "Japanese",
  "lang_code": "ja",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Japanese entries with incorrect language header",
        "Japanese lemmas",
        "Japanese links with redundant wikilinks",
        "Japanese nouns",
        "Japanese terms spelled with second grade kanji",
        "Japanese terms spelled with sixth grade kanji",
        "Japanese terms with IPA pronunciation",
        "Japanese terms with non-redundant non-automated sortkeys",
        "Japanese terms with redundant sortkeys",
        "Japanese terms written with two Han script characters",
        "ja:Anatomy"
      ],
      "glosses": [
        "nipple"
      ],
      "links": [
        [
          "anatomy",
          "anatomy"
        ],
        [
          "nipple",
          "nipple"
        ]
      ],
      "raw_glosses": [
        "(anatomy) nipple"
      ],
      "topics": [
        "anatomy",
        "medicine",
        "sciences"
      ]
    }
  ],
  "sounds": [
    {
      "other": "にゅうとー"
    },
    {
      "ipa": "[ɲ̟ɯ̟ᵝːto̞ː]"
    }
  ],
  "synonyms": [
    {
      "roman": "chikubi",
      "ruby": [
        [
          "乳首",
          "ちくび"
        ]
      ],
      "word": "乳首"
    }
  ],
  "word": "乳頭"
}