Definitions

1. noun

a screen or canopy of canvas or netting, typically mounted on a frame, used for ventilation or to provide shade in a mine, quarry, or other confined space.

“The miners used a brattice to ventilate the tunnel and prevent gas buildup.”

2. noun

a framework or structure, typically of wood or metal, used to support a brattice.

“The team set up a brattice frame to hold the ventilation screen in place.”