Definition

1. Noun:
   • A nearly horizontal passage from the surface into a mine: An "adit" is a type of entrance or tunnel that is dug into the side of a hill or mountain to access a mine. Unlike a vertical shaft, an adit is primarily horizontal or has a very gentle slope, allowing for drainage and easier transport.

Usage

• The word "adit" is a technical term used primarily in mining, geology, and engineering contexts. It refers specifically to the entrance of a mine. It is not commonly used in everyday conversation.

Examples

• Noun:
  • The miners entered the coal seam through the main adit.
  • Water drained from the old mine through its adit.
  • The exploration team discovered a collapsed adit leading to the abandoned silver mine.

Advanced Usage

• "To drive an adit": This phrase describes the act of excavating or constructing this type of tunnel.
  • The company plans to drive a new adit to reach the deeper ore body.

Variants and Related Words

• Adit-level (n): The horizontal plane or elevation at which an adit is constructed.
  • The new vein was discovered just above the main adit-level.

Synonyms

• Entrance: A general term for a point of entry.
• Tunnel: A general term for an underground passage.
• Drift: In mining, a horizontal or near-horizontal passage underground. While similar, a "drift" may not necessarily connect to the surface like an "adit" does.
• Level: In mining, a horizontal passage, but often one inside the mine, not necessarily an entrance from the surface.

Antonyms

• Shaft: A vertical or steeply inclined passage into a mine.

Noun

1. a nearly horizontal passage from the surface into a mine