"เส้นเลือดดำ" meaning in Thai

{
  "forms": [
    {
      "form": "sên-lʉ̂ʉat-dam",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "เส้นเลือดดำ"
      },
      "expansion": "เส้นเลือดดำ • (sên-lʉ̂ʉat-dam)",
      "name": "th-noun"
    }
  ],
  "lang": "Thai",
  "lang_code": "th",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Thai entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Thai terms with redundant script codes",
          "parents": [
            "Terms with redundant script codes",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "th",
          "name": "Anatomy",
          "orig": "th:Anatomy",
          "parents": [
            "Biology",
            "Medicine",
            "Sciences",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "vein"
      ],
      "id": "en-เส้นเลือดดำ-th-noun-CZ1nvweA",
      "links": [
        [
          "anatomy",
          "anatomy"
        ],
        [
          "vein",
          "vein"
        ]
      ],
      "raw_glosses": [
        "(anatomy) vein"
      ],
      "synonyms": [
        {
          "roman": "lɔ̀ɔt-lʉ̂ʉat-dam",
          "word": "หลอดเลือดดำ"
        }
      ],
      "topics": [
        "anatomy",
        "medicine",
        "sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/sen˥˩.lɯa̯t̚˥˩.dam˧/",
      "tags": [
        "standard"
      ]
    }
  ],
  "word": "เส้นเลือดดำ"
}

{
  "forms": [
    {
      "form": "sên-lʉ̂ʉat-dam",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "head": "เส้นเลือดดำ"
      },
      "expansion": "เส้นเลือดดำ • (sên-lʉ̂ʉat-dam)",
      "name": "th-noun"
    }
  ],
  "lang": "Thai",
  "lang_code": "th",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "Rhymes:Thai/am",
        "Thai 3-syllable words",
        "Thai entries with incorrect language header",
        "Thai lemmas",
        "Thai nouns",
        "Thai terms with IPA pronunciation",
        "Thai terms with redundant script codes",
        "th:Anatomy"
      ],
      "glosses": [
        "vein"
      ],
      "links": [
        [
          "anatomy",
          "anatomy"
        ],
        [
          "vein",
          "vein"
        ]
      ],
      "raw_glosses": [
        "(anatomy) vein"
      ],
      "topics": [
        "anatomy",
        "medicine",
        "sciences"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/sen˥˩.lɯa̯t̚˥˩.dam˧/",
      "tags": [
        "standard"
      ]
    }
  ],
  "synonyms": [
    {
      "roman": "lɔ̀ɔt-lʉ̂ʉat-dam",
      "word": "หลอดเลือดดำ"
    }
  ],
  "word": "เส้นเลือดดำ"
}