From thefreedictionary.com: "Physics. Having the same electric potential at every point."
See also Top 2008 NEC Changes; 680.26 Equipotential Bonding for Swimming Pools, Spas and Hot Tubs, and Grounding vs Bonding.
See also Top 2008 NEC Changes; 680.26 Equipotential Bonding for Swimming Pools, Spas and Hot Tubs, and Grounding vs Bonding.