"reduced vowel" meaning in English

{
  "forms": [
    {
      "form": "reduced vowels",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "reduced vowel (plural reduced vowels)",
      "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": "topical",
          "langcode": "en",
          "name": "Phonology",
          "orig": "en:Phonology",
          "parents": [
            "Linguistics",
            "Language",
            "Social sciences",
            "Communication",
            "Sciences",
            "Society",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "The schwa is a typical reduced vowel, though it can also be a full vowel in some languages.",
          "type": "example"
        }
      ],
      "glosses": [
        "a vowel that occurs only, or at least disproportionately often, in unstressed syllables in a given language; usually one that is intermediate in both height and frontness/backness"
      ],
      "id": "en-reduced_vowel-en-noun-2xXQwJJf",
      "links": [
        [
          "phonology",
          "phonology"
        ],
        [
          "vowel",
          "vowel"
        ],
        [
          "unstressed",
          "unstressed"
        ],
        [
          "syllable",
          "syllable"
        ],
        [
          "intermediate",
          "intermediate"
        ],
        [
          "height",
          "height"
        ],
        [
          "frontness",
          "frontness"
        ],
        [
          "backness",
          "backness"
        ]
      ],
      "raw_glosses": [
        "(phonology) a vowel that occurs only, or at least disproportionately often, in unstressed syllables in a given language; usually one that is intermediate in both height and frontness/backness"
      ],
      "related": [
        {
          "word": "vowel reduction"
        }
      ],
      "topics": [
        "human-sciences",
        "linguistics",
        "phonology",
        "sciences"
      ],
      "translations": [
        {
          "code": "de",
          "lang": "German",
          "sense": "Translations",
          "tags": [
            "masculine"
          ],
          "word": "Reduktionsvokal"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "Translations",
          "tags": [
            "masculine"
          ],
          "word": "Murmelvokal"
        }
      ]
    }
  ],
  "word": "reduced vowel"
}

{
  "forms": [
    {
      "form": "reduced vowels",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "reduced vowel (plural reduced vowels)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "vowel reduction"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with usage examples",
        "Translation table header lacks gloss",
        "en:Phonology"
      ],
      "examples": [
        {
          "text": "The schwa is a typical reduced vowel, though it can also be a full vowel in some languages.",
          "type": "example"
        }
      ],
      "glosses": [
        "a vowel that occurs only, or at least disproportionately often, in unstressed syllables in a given language; usually one that is intermediate in both height and frontness/backness"
      ],
      "links": [
        [
          "phonology",
          "phonology"
        ],
        [
          "vowel",
          "vowel"
        ],
        [
          "unstressed",
          "unstressed"
        ],
        [
          "syllable",
          "syllable"
        ],
        [
          "intermediate",
          "intermediate"
        ],
        [
          "height",
          "height"
        ],
        [
          "frontness",
          "frontness"
        ],
        [
          "backness",
          "backness"
        ]
      ],
      "raw_glosses": [
        "(phonology) a vowel that occurs only, or at least disproportionately often, in unstressed syllables in a given language; usually one that is intermediate in both height and frontness/backness"
      ],
      "topics": [
        "human-sciences",
        "linguistics",
        "phonology",
        "sciences"
      ]
    }
  ],
  "translations": [
    {
      "code": "de",
      "lang": "German",
      "sense": "Translations",
      "tags": [
        "masculine"
      ],
      "word": "Reduktionsvokal"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "Translations",
      "tags": [
        "masculine"
      ],
      "word": "Murmelvokal"
    }
  ],
  "word": "reduced vowel"
}