"subsônico" meaning in Portuguese

{
  "forms": [
    {
      "form": "subsônica",
      "tags": [
        "feminine"
      ]
    },
    {
      "form": "subsônicos",
      "tags": [
        "masculine",
        "plural"
      ]
    },
    {
      "form": "subsônicas",
      "tags": [
        "feminine",
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "hascomp": "no"
      },
      "expansion": "subsônico (feminine subsônica, masculine plural subsônicos, feminine plural subsônicas, not comparable)",
      "name": "pt-adj"
    }
  ],
  "hyphenation": [
    "sub‧só‧ni‧co"
  ],
  "lang": "Portuguese",
  "lang_code": "pt",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Portuguese entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "European Portuguese form standard spelling of subsónico."
      ],
      "id": "en-subsônico-pt-adj-2PcvVQKr",
      "links": [
        [
          "subsónico",
          "subsónico#Portuguese"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "(Brazil) -õniku"
    }
  ],
  "word": "subsônico"
}

{
  "forms": [
    {
      "form": "subsônica",
      "tags": [
        "feminine"
      ]
    },
    {
      "form": "subsônicos",
      "tags": [
        "masculine",
        "plural"
      ]
    },
    {
      "form": "subsônicas",
      "tags": [
        "feminine",
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "hascomp": "no"
      },
      "expansion": "subsônico (feminine subsônica, masculine plural subsônicos, feminine plural subsônicas, not comparable)",
      "name": "pt-adj"
    }
  ],
  "hyphenation": [
    "sub‧só‧ni‧co"
  ],
  "lang": "Portuguese",
  "lang_code": "pt",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "Portuguese adjectives",
        "Portuguese adjectives with red links in their headword lines",
        "Portuguese entries with incorrect language header",
        "Portuguese lemmas",
        "Portuguese uncomparable adjectives",
        "Rhymes:Portuguese/õniku",
        "Rhymes:Portuguese/õniku/4 syllables"
      ],
      "glosses": [
        "European Portuguese form standard spelling of subsónico."
      ],
      "links": [
        [
          "subsónico",
          "subsónico#Portuguese"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "(Brazil) -õniku"
    }
  ],
  "word": "subsônico"
}