A coating applied to an object by immersing it in a colloidal suspension of particles and making it act as one of a pair of electrodes that apply an electric field, so that the particles migrate towards it; a coating added by electrophoretic deposition.
1960s; earliest use found in The Daily Telegraph. From electro- + coat.
with object To apply a coating to (an object) by electrocoating.
Mid 19th century. From electro- + coat.