longwall

[ lawng-wawl, long- ]
/ ˈlɔŋˌwɔl, ˈlɒŋ- /

adjective Mining.

noting or pertaining to a means of extracting coal or other minerals in an underground mine from a continuous face, the roof before the face being supported at intervals by temporary or movable artificial supports.Compare room-and-pillar.

noun

the continuous face so worked.

Origin of longwall

First recorded in 1830–40; long1 + wall
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for longwall

  • A few days later Maurice had come along with news of rooms in Longwall.

    Sinister Street, vol. 2|Compton Mackenzie
  • The New College man he was going to live with is going down, and he had fixed up some rather jolly digs in Longwall.

    Sinister Street, vol. 2|Compton Mackenzie