Electrophorus \E*lec`troph"o*rus\, n.; pl. {Electrophori}. [NL., fr. combining form electro- + Gr. fe`rein to bear.] (Physics) An instrument for exciting electricity, and repeating the charge indefinitely by induction, consisting of a flat cake of resin, shellac, or ebonite, upon which is placed a plate of metal. [1913 Webster]