"subdigastric" meaning in English

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "sub",
        "3": "digastric"
      },
      "expansion": "sub- + digastric",
      "name": "prefix"
    }
  ],
  "etymology_text": "sub- + digastric",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "subdigastric (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms prefixed with sub-",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Synonym of jugulodigastric"
      ],
      "id": "en-subdigastric-en-adj-8D7CNWhf",
      "links": [
        [
          "jugulodigastric",
          "jugulodigastric#English"
        ]
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "jugulodigastric"
        }
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-æstɹɪk"
    }
  ],
  "word": "subdigastric"
}

{
  "etymology_templates": [
    {
      "args": {
        "1": "en",
        "2": "sub",
        "3": "digastric"
      },
      "expansion": "sub- + digastric",
      "name": "prefix"
    }
  ],
  "etymology_text": "sub- + digastric",
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "subdigastric (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "senses": [
    {
      "categories": [
        "English adjectives",
        "English entries with incorrect language header",
        "English lemmas",
        "English terms prefixed with sub-",
        "English uncomparable adjectives",
        "Rhymes:English/æstɹɪk",
        "Rhymes:English/æstɹɪk/4 syllables"
      ],
      "glosses": [
        "Synonym of jugulodigastric"
      ],
      "links": [
        [
          "jugulodigastric",
          "jugulodigastric#English"
        ]
      ],
      "synonyms": [
        {
          "tags": [
            "synonym",
            "synonym-of"
          ],
          "word": "jugulodigastric"
        }
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-æstɹɪk"
    }
  ],
  "word": "subdigastric"
}