"구강" meaning in Korean

{
  "etymology_templates": [
    {
      "args": {
        "1": "ko",
        "2": "口腔"
      },
      "expansion": "",
      "name": "etymid"
    },
    {
      "args": {
        "1": "口",
        "2": "mouth",
        "3": "腔",
        "4": "cavity"
      },
      "expansion": "Sino-Korean word from 口腔, from 口 (“mouth”) + 腔 (“cavity”)",
      "name": "ko-etym-sino"
    }
  ],
  "etymology_text": "Sino-Korean word from 口腔, from 口 (“mouth”) + 腔 (“cavity”)",
  "forms": [
    {
      "form": "gugang",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "口腔",
      "tags": [
        "hanja"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "hanja": "口腔"
      },
      "expansion": "구강 • (gugang) (hanja 口腔)",
      "name": "ko-noun"
    }
  ],
  "lang": "Korean",
  "lang_code": "ko",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Korean entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Korean terms with long vowels in the first syllable",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Korean terms with redundant script codes",
          "parents": [
            "Terms with redundant script codes",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Korean terms with redundant transliterations",
          "parents": [
            "Terms with redundant transliterations",
            "Entry maintenance"
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          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
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          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Sino-Korean words",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "oral cavity"
      ],
      "id": "en-구강-ko-noun-gIhd-XVC",
      "links": [
        [
          "oral cavity",
          "oral cavity"
        ]
      ],
      "related": [
        {
          "alt": "口蓋",
          "english": "palate of the mouth",
          "roman": "gugae",
          "word": "구개"
        },
        {
          "english": "mouth",
          "roman": "ip",
          "word": "입"
        },
        {
          "english": "jaw",
          "roman": "teok",
          "word": "턱"
        },
        {
          "english": "gum (flesh around the necks of teeth)",
          "roman": "inmom",
          "word": "잇몸"
        },
        {
          "alt": "입天障",
          "english": "palate of the mouth",
          "roman": "ipcheonjang",
          "word": "입천장"
        },
        {
          "english": "hole; hollow; cavity",
          "roman": "gumu",
          "word": "구무"
        }
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈku(ː)ɡa̠ŋ]",
      "tags": [
        "SK-Standard",
        "Seoul"
      ]
    },
    {
      "hangeul": "구(ː)강"
    },
    {
      "other": "[구(ː)강]"
    }
  ],
  "word": "구강"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "ko",
        "2": "口腔"
      },
      "expansion": "",
      "name": "etymid"
    },
    {
      "args": {
        "1": "口",
        "2": "mouth",
        "3": "腔",
        "4": "cavity"
      },
      "expansion": "Sino-Korean word from 口腔, from 口 (“mouth”) + 腔 (“cavity”)",
      "name": "ko-etym-sino"
    }
  ],
  "etymology_text": "Sino-Korean word from 口腔, from 口 (“mouth”) + 腔 (“cavity”)",
  "forms": [
    {
      "form": "gugang",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "口腔",
      "tags": [
        "hanja"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "hanja": "口腔"
      },
      "expansion": "구강 • (gugang) (hanja 口腔)",
      "name": "ko-noun"
    }
  ],
  "lang": "Korean",
  "lang_code": "ko",
  "pos": "noun",
  "related": [
    {
      "alt": "口蓋",
      "english": "palate of the mouth",
      "roman": "gugae",
      "word": "구개"
    },
    {
      "english": "mouth",
      "roman": "ip",
      "word": "입"
    },
    {
      "english": "jaw",
      "roman": "teok",
      "word": "턱"
    },
    {
      "english": "gum (flesh around the necks of teeth)",
      "roman": "inmom",
      "word": "잇몸"
    },
    {
      "alt": "입天障",
      "english": "palate of the mouth",
      "roman": "ipcheonjang",
      "word": "입천장"
    },
    {
      "english": "hole; hollow; cavity",
      "roman": "gumu",
      "word": "구무"
    }
  ],
  "senses": [
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      "categories": [
        "Korean entries with incorrect language header",
        "Korean lemmas",
        "Korean nouns",
        "Korean terms with IPA pronunciation",
        "Korean terms with long vowels in the first syllable",
        "Korean terms with redundant script codes",
        "Korean terms with redundant transliterations",
        "Pages with 1 entry",
        "Pages with entries",
        "Sino-Korean words"
      ],
      "glosses": [
        "oral cavity"
      ],
      "links": [
        [
          "oral cavity",
          "oral cavity"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "[ˈku(ː)ɡa̠ŋ]",
      "tags": [
        "SK-Standard",
        "Seoul"
      ]
    },
    {
      "hangeul": "구(ː)강"
    },
    {
      "other": "[구(ː)강]"
    }
  ],
  "word": "구강"
}