electrophoresis

electrophoresis

n.
  1. the motion of charged molecules or particles in a liquid medium under the influence of an electric field; particles with a positive charge move toward the cathode and negative to the anode. (Chem.)
  2. the application of the principle of electrophoresis to separate molecules, used as an analytical or preparative technique; as, separation by electrophoresis; gel electrophoresis. (Chem., Biochem.)