1 a (1): ability to act or produce an effect (2): ability to get extra-base hits (3): capacity for being acted upon or undergoing an effect b: legal or official authority, capacity, or right2 a: possession of control, authority, or influence over others b: one having such power; specifically : a sovereign state c: a controlling group : establishment —often used in the phrase the powers that be darchaic : a force of armed men echiefly dialect : a large number or quantity3 a: physical might b: mental or moral efficacy c: political control or influence4plural : an order of angels — see celestial hierarchy5 a: the number of times as indicated by an exponent that a number occurs as a factor in a product <5 to the third power is 125>; also : the product itself <8 is a power of 2> b: cardinal number 26 a: a source or means of supplying energy; especially : electricity b: motive power c: the time rate at which work is done or energy emitted or transferred7: magnification 2b8: scope 39: the probability of rejecting the null hypothesis in a statistical test when a particular alternative hypothesis happens to be true | 1 a (1): ability to act or produce an effect (2): ability to get extra-base hits (3): capacity for being acted upon or undergoing an effect b: legal or official authority, capacity, or right2 a: possession of control, authority, or influence over others b: one having such power; specifically : a sovereign state c: a controlling group : establishment —often used in the phrase the powers that be darchaic : a force of armed men echiefly dialect : a large number or quantity3 a: physical might b: mental or moral efficacy c: political control or influence4plural : an order of angels — see celestial hierarchy5 a: the number of times as indicated by an exponent that a number occurs as a factor in a product <5 to the third power is 125>; also : the product itself <8 is a power of 2> b: cardinal number 26 a: a source or means of supplying energy; especially : electricity b: motive power c: the time rate at which work is done or energy emitted or transferred7: magnification 2b8: scope 39: the probability of rejecting the null hypothesis in a statistical test when a particular alternative hypothesis happens to be true |