polarography

po lar og ra phy |ˌpōləˈrägrəfē ˌpoʊləˈrɑɡrəfi | ▶noun Chemistry a method of analysis in which a sample is subjected to electrolysis using a special electrode and a range of applied voltages, a plot of current against voltage showing steps corresponding to particular chemical species and proportional to their concentration. DERIVATIVES po lar o graph ic |pōˌlarəˈgrafik, pə - |adjective ORIGIN 1930s: from polarization (see polarize ) + -graphy .

polarography

polarography |ˌpəʊləˈrɒgrəfi | ▶noun [ mass noun ] Chemistry a method of analysis in which a sample is subjected to electrolysis using a special electrode and a range of applied voltages, a plot of current against voltage showing steps corresponding to particular chemical species and proportional to their concentration. DERIVATIVES polarographic |-ˈgrafɪk |adjective ORIGIN 1930s: from polarization (see polarize ) + -graphy .