a primary electric cell, as the Weston cell, that produces an accurately known constant voltage: used in scientific measurements.
a voltaic cell producing a constant and accurately known electromotive force that can be used to calibrate voltage-measuring instruments
noun 1. a coin having value in bullion at least equal to its face value.
noun 1. a predetermined cost of material, labor, etc., based on specifications prepared from time-and-motion studies, accounting records, and the like. standard cost noun 1. (accounting) the predetermined budgeted cost of a regular manufacturing process against which actual costs are compared
noun, Statistics. 1. a measure of dispersion in a frequency distribution, equal to the square root of the mean of the squares of the deviations from the arithmetic mean of the distribution. standard deviation noun 1. (statistics) a measure of dispersion obtained by extracting the square root of the mean of the squared deviations of […]
noun 1. the basic monetary unit of the U.S., since January 31, 1934, containing 15.2 grains of gold, 0.900 fine: previously contained 25.8 grains of gold, 0.900 fine.