cathodo-|ˈkæθədəʊ|used as combining form of cathode.1909Physical Rev. XXVIII. 349 With regard to the dependence of kathodo-luminescence upon discharge potential and current strength.1914Ibid. 2nd Ser. IV. 21 The brightness of the crests of the red and blue bands of the white and pink kunzite under kathodo-excitation.1923Amer.Jrnl.Sci. Oct. 373 The minimum energy required to excite cathodo-luminescence.
cathodo-/ˈkaθədəʊ/combining form of cathode: see -o-. Also k-†.