A unit of electric potential equal to 10-6 volt. This unit is used in cardiology and other medical fields to measure the small potentials within the nervous system
Russ Rowlett (Director), How Many? A Dictionary of Units of Measurement, Center for Mathematics and Science Education University of North Carolina, USA 2005. http://www.unc.edu/~rowlett/units/dictA.html, (Unit of Meas and Covr Factors - Amer) {608}