A mechanized winch used to haul nets on fishing vessels, easier to manipulate than a purse seine.

plural of Puretic power block

plural of Banzhaf power index

plural of power-associative algebra

plural of storage power station

(aviation) A generator in aircraft or other vehicles for providing electric power to various systems, such as lighting, especially when the main engines are not running.

plural of purchasing power parity

(mathematics, algebra) Any finite or infinite series of the form a_0+a_1x+a_2x²…=∑ᵢa_ixⁱ, where the aᵢ are numbers, but it is understood that no value is assigned to x.

(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.