|1.||ability or capacity to do something|
|2.||(often plural) a specific ability, capacity, or faculty|
|3.||political, financial, social, etc, force or influence|
|4.||control or dominion or a position of control, dominion, or authority|
|5.||a state or other political entity with political, industrial, or military strength|
|6.||a person who exercises control, influence, or authority: he's a power in the state|
|7.||a prerogative, privilege, or liberty|
|8.||a. legal authority to act, esp in a specified capacity, for another|
|b. the document conferring such authority|
|9.||a. a military force|
|b. military potential|
|a. the value of a number or quantity raised to some exponent|
|b. another name for exponent|
|11.||statistics the probability of rejecting the null hypothesis in a test when it is false. The power of a test of a given null depends on the particular alternative hypothesis against which it is tested|
|12.||physics, engineering P a measure of the rate of doing work expressed as the work done per unit time. It is measured in watts, horsepower, etc|
|13.||a. the rate at which electrical energy is fed into or taken from a device or system. It is expressed, in a direct-current circuit, as the product of current and voltage and, in an alternating-current circuit, as the product of the effective values of the current and voltage and the cosine of the phase angle between them. It is measured in watts|
|b. (as modifier): a power amplifier|
|14.||the ability to perform work|
|15.||a. mechanical energy as opposed to manual labour|
|b. (as modifier): a power mower|
|16.||a particular form of energy: nuclear power|
|17.||a. a measure of the ability of a lens or optical system to magnify an object, equal to the reciprocal of the focal length. It is measured in dioptres|
|b. another word for magnification|
|18.||informal a large amount or quantity: a power of good|
|19.||(plural) the sixth of the nine orders into which the angels are traditionally divided in medieval angelology|
|20.||(often foll by an infinitive) in one's power able or allowed (to)|
|21.||in someone's power under the control or sway of someone|
|22.||the powers that be the established authority or administration|
|23.||to give or provide power to|
|24.||to fit (a machine) with a motor or engine|
|25.||slang (intr) to travel with great speed or force|
|[C13: from Anglo-Norman poer, from Vulgar Latin potēre (unattested), from Latin posse to be able]|
power pow·er (pou'ər)
The capacity to perform or act effectively.
Strength or force that is exerted or that is capable of being exerted.
The amount of work done per unit time.
A measure of the magnification of an optical instrument, such as a microscope or telescope.
power [%PREMIUM_LINK%] (pou'ər) Pronunciation Key |
In mathematics, a power is a number multiplied by itself the number of times signified by an exponent placed to the right and above it. Thus, 32, which means 3 × 3, is a power — the second power of three, or three squared, or nine. The expression 106, or ten to the sixth power, means 10 × 10 × 10 × 10 × 10 × 10, or one million.