noun (used with a singular verb)
the branch of physics that deals with electricity in motion.
Origin of electrokinetics
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
of or relating to the motion of charged particles and its effects
(functioning as singular) the branch of physics concerned with the motion of charged particles
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012