Thirl

{
  "id": "MLC-T-IND-005967",
  "term": "Thirl",
  "field": "Industrial and trades",
  "definition": "To bore or drill a hole through a rock mass or coal seam, creating a passage or connection between two existing mine workings. This process is undertaken to improve ventilation, provide access for miners, or facilitate the transport of materials. A thirl can also refer to the passage itself, connecting parallel roadways in a mine.",
  "subject": "Mining and extraction",
  "translations": {
    "de": "thirl",
    "es": "thirl",
    "fr": "forer"
  },
  "url": "https://mlchart.com/terminology/industrial/thirl/"
}