Wiktionary
vb. (present participle of bund English)
Wikipedia
Bunding, also called a bund wall, is a constructed retaining wall around storage "where potentially polluting substances are handled, processed or stored, for the purposes of containing any unintended escape of material from that area until such time as remedial action can be taken."
Usage examples of "bunding".
It was a gray bunding, barely distinguishable from the land around it.
Rhiow looked at the Mountain, which lay still in shadow: but far up, on the highest peak, a spear of light was lifted to the sky, bunding—the topmost branches of the great Tree, catching the light of the Sun before it cleared the horizon for those lower down.
The quality of the scream had been of sudden, fully realized terror as the man fell, scrabbled at the ice with his finger-nails and boots, and then, as he gathered speed down the polished blue gully, the bunding horror of the truth.
Overhead, the sky burned steely, like metal in flame save it was only cold, and when he looked to where the Maker's Mountain stood, the peak glittered, a bunding white pinnacle defiant of observation.
Snow, bunding like a curtain - orange haloes of headlights, from somewhere behind.
The sun was piercing the morning with its first bunding rays when she returned to the beach house, showered and began packing.