The ratio of the speeds of rotation of the initial and final gears in a gear train.

(statistics) A variable with the features of interval variable and, additionally, whose any two values have meaningful ratio, making the operations of multiplication and division meaningful.

(economics, finance) A measure of a bank's creditworthiness, equal to ratio of the bank's nonperforming assets (nonperforming loans plus other real estate owned) to the sum of its tangible equity capital plus loan-loss reserves.

(aviation) The instantaneous ratio of horizontal speed to rate of fall for a glider. / The maximum ratio of horizontal speed to rate of fall that a glider can maintain.

(trigonometry) The ratio of the side of a right-angled triangle opposite to a specified angle to the hypotenuse; when expressed as a real number between 0 and 1, it defines the sine of the angle.

plural of ratio variable

Alternative spelling of eudysmic ratio

(chemistry, pharmacology, biology) A ratio expressing the difference in pharmacologic activity between the two enantiomers of a drug.

(technology) ratio of the luminance of white to that of black of a display. A higher value means a higher contrast of white and black.

For a pixelated source, the ratio of the average distance between adjacent pixel sources to the average width of the pixel sources.