# avionics

/ˌeɪviˈɑnɪks/ (US) · /ˌeɪvɪˈɒnɪks/ (UK) · CEFR C1 · Noun

Source: https://englishreference.com/word/avionics
Updated: 2026-05-25

## Definition

the electronic systems used in aircraft and spacecraft. These systems help with navigation, communication, and keeping the plane safe in the air.

For teachers: the electronic systems used on aircraft, artificial satellites, and spacecraft. Typically refers to the hardware and software that manage navigation, communication, and flight control.

## Examples

- Modern avionics make flying much safer and more efficient.
- The pilot checked the avionics to ensure the autopilot and radar systems were functioning correctly before takeoff.
- Advances in digital avionics have allowed for the integration of complex sensor data, enabling real-time adjustments to flight paths that were previously impossible with mechanical instruments alone.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.