auxiliary power unit

noun

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.

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Meanings

nounauxiliary power unit (plural auxiliary power units)

plural auxiliary power units

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

Translations

Polish pomocnicza jednostka zasilająca
  • pomocnicza jednostka zasilającagenerator for providing electric power especially when the main engines are not running
Ukrainian допомі́жна́ силова́ устано́вка
  • допомі́жна́ силова́ устано́вка (dopomížná sylová ustanóvka)generator for providing electric power especially when the main engines are not running
Cite this entry
APA

auxiliary power unit. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/auxiliary%20power%20unit

MLA

“auxiliary power unit.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/auxiliary%20power%20unit. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “auxiliary power unit,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/auxiliary%20power%20unit.

Source: auxiliary power unit on Wiktionary, CC BY-SA 4.0.