Definition of potential difference in US English:
 potential difference
nounpəˈten(t)SHəl ˈdif(ə)rəns
Physics The difference of electrical potential between two points.
 Example sentencesExamples
-  It is defined as the energy lost or gained by an electron as it passes through a potential difference of one volt.
 -  When the electrode tip is located in the vacuole, the electrical potential difference is that across two membranes, the plasma membrane and the tonoplast.
 -  Application of an electric potential difference led to a parallel dichroism of this vibration.
 -  This results in a decreased membrane potential, which is defined as the electrochemical potential difference of protons across the inner mitochondrial membrane.