"Y-shaped" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "Y-shaped (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": "Entries with translation boxes",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with German translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Terms with Mandarin translations",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Shapes",
          "orig": "en:Shapes",
          "parents": [
            "Geometry",
            "Mathematics",
            "Formal sciences",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "derived": [
        {
          "word": "Y-shaped coffin"
        }
      ],
      "examples": [
        {
          "text": "An immunoglobulin is a large, Y-shaped protein.",
          "type": "example"
        },
        {
          "ref": "1920, Edward Carpenter, Pagan and Christian Creeds, New York: Harcourt, Brace and Co., published 1921:",
          "text": "The constellation Virgo is a Y-shaped group, of which α, the star at the foot, is the well-known Spica, a star of the first magnitude.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Shaped like the capital letter \"Y\"."
      ],
      "id": "en-Y-shaped-en-adj-vICUKEd7",
      "links": [
        [
          "Y",
          "Y"
        ]
      ],
      "related": [
        {
          "word": "A-shaped - B-shaped - C-shaped - D-shaped - E-shaped - F-shaped - G-shaped - H-shaped - I-shaped - J-shaped - K-shaped - L-shaped - M-shaped - N-shaped - O-shaped - P-shaped - Q-shaped - R-shaped - S-shaped - T-shaped - U-shaped - V-shaped - W-shaped - X-shaped - Y-shaped - Z-shaped"
        }
      ],
      "tags": [
        "not-comparable"
      ],
      "translations": [
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "roman": "yāzì",
          "sense": "Translations",
          "word": "丫字"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "Translations",
          "word": "Y-förmig"
        }
      ]
    }
  ],
  "word": "Y-shaped"
}

{
  "derived": [
    {
      "word": "Y-shaped coffin"
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "Y-shaped (not comparable)",
      "name": "en-adj"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "adj",
  "related": [
    {
      "word": "A-shaped - B-shaped - C-shaped - D-shaped - E-shaped - F-shaped - G-shaped - H-shaped - I-shaped - J-shaped - K-shaped - L-shaped - M-shaped - N-shaped - O-shaped - P-shaped - Q-shaped - R-shaped - S-shaped - T-shaped - U-shaped - V-shaped - W-shaped - X-shaped - Y-shaped - Z-shaped"
    }
  ],
  "senses": [
    {
      "categories": [
        "English 2-syllable words",
        "English adjectives",
        "English compound adjectives",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English possessional adjectives",
        "English terms derived from the shape of letters",
        "English terms with quotations",
        "English terms with usage examples",
        "English uncomparable adjectives",
        "Entries with translation boxes",
        "Pages with 1 entry",
        "Pages with entries",
        "Terms with German translations",
        "Terms with Mandarin translations",
        "Translation table header lacks gloss",
        "en:Shapes"
      ],
      "examples": [
        {
          "text": "An immunoglobulin is a large, Y-shaped protein.",
          "type": "example"
        },
        {
          "ref": "1920, Edward Carpenter, Pagan and Christian Creeds, New York: Harcourt, Brace and Co., published 1921:",
          "text": "The constellation Virgo is a Y-shaped group, of which α, the star at the foot, is the well-known Spica, a star of the first magnitude.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Shaped like the capital letter \"Y\"."
      ],
      "links": [
        [
          "Y",
          "Y"
        ]
      ],
      "tags": [
        "not-comparable"
      ]
    }
  ],
  "translations": [
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "roman": "yāzì",
      "sense": "Translations",
      "word": "丫字"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "Translations",
      "word": "Y-förmig"
    }
  ],
  "word": "Y-shaped"
}

{
  "called_from": "form_descriptions/1698",
  "msg": "unrecognized head form: possessional",
  "path": [
    "Y-shaped"
  ],
  "section": "English",
  "subsection": "adjective",
  "title": "Y-shaped",
  "trace": ""
}