present participle of power up

At full power; at the very utmost limit. / For vessels that depends on engines for propulsion that is independent of assistance from any sails.

Using steam power.

plural of water power

plural of statistical power

(statistics) The probability that a statistical test will reject a false null hypothesis, that is, that it will not make a type II error, producing a false negative.

plural of inherent power

plural of power law

(Britain, slang) A tablet of the drug ecstasy.

(international relations) A state that has the ability to exert its influence on a global scale.