A power station that obtains its primary energy from the heat generated in nuclear reactions.

A power plant that obtains its primary energy from the heat generated in nuclear reactions.

plural of nuclear power station

(electrical engineering) A device or system that almost instantaneously provides emergency power in the case that main power fails.

(set theory) The axiom that the power set of any set exists and is a valid set, which appears in the standard axiomatisation of set theory, ZFC.

A power station that generates a store of power when power is available from other sources, and releases it to the network when needed (normally by pumping water to a high-level reservoir)

Used to express wishes for someone's success in an endeavour of their own choosing.

plural of motive power depot

(rail transport) A place where locomotives are housed, maintained and repaired.

plural of auxiliary power unit