bund

noun

1. A league or confederacy; especially the confederation of German states.

2. A secondary enclosure, typically consisting of a wall or berm, which surrounds a tank or fluid-handling mechanism, intended to contain any spills or leaks.

- The most important of these [secondary containment] provisions are bunds, which are enclosures capable of holding liquids that may escape from the vessels

3. Alternative spelling of bundh (pond in which fish are stored for breeding).

verb

1. To provide berms or other secondary enclosures to guard against accidental fluid spills within.

- Plant room floors are generally bunded and/or waterproofed to contain any leaks or spillages of liquids and fluids from faulty tanks, plant or pipe work.