Definition of potential difference in US English:

potential difference

noun

Physics
  • The difference of electrical potential between two points.

    • ‘Application of an electric potential difference led to a parallel dichroism of this vibration.’
    • ‘When the electrode tip is located in the vacuole, the electrical potential difference is that across two membranes, the plasma membrane and the tonoplast.’
    • ‘This results in a decreased membrane potential, which is defined as the electrochemical potential difference of protons across the inner mitochondrial membrane.’
    • ‘It is defined as the energy lost or gained by an electron as it passes through a potential difference of one volt.’

Pronunciation

potential difference

/pəˈten(t)SHəl ˈdif(ə)rəns/