| coef | a constant number that serves as a measure of some property or characteristic |
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| coef | a measure of the rate of decrease in the intensity of electromagnetic radiation (as light) as it passes through a given substance |
| coef | a coefficient of agreement (concordance) between different sets of rank orderings of the same set of things |
| coef | a statistic representing how closely two variables co-vary |
| coef | the ratio of the drag on a body moving through air to the product of the velocity and the surface area of the body |
| coef | (physics) the ratio of the applied stress to the change in shape of an elastic body |
| coef | the fractional change in length or area or volume per unit change in temperature at a given constant pressure |
| coef | the ratio of the weight of an object being moved along a surface and the force that maintains contact between the object and the surface |
| coef | a measure of the induction between two circuits |
| coef | the fraction of radiant energy that is reflected from a surface |
| coef | the ratio of the electromotive force produced in a circuit by self-induction to the rate of change of current producing it, expressed in henries |
| coef | a measure of the resistance to flow of a fluid under an applied force |