Definition
A wearable audio device worn on or over the ears that converts electrical audio signals from aircraft communication and navigation radios into sound, allowing the pilot to hear radio transmissions, navigation aids, and audio alerts privately and clearly in the cockpit.
Plain English
The set of earpieces a pilot wears so they can hear radio calls and other cockpit audio without it being lost in engine and wind noise.
Context Anchor
Seen in cockpit communication equipment, especially when connecting a headset to the aircraft audio panel or radio system.
Derivation
From 'head' plus 'phone,' where 'phone' comes from the Greek 'phōnē' meaning 'sound' or 'voice.' Literally, a sound device worn on the head.
Why Pilots Care
Cockpits are loud. Without headphones, radio calls and navigation audio are easily missed, leading to misheard clearances, missed traffic calls, or confusion on frequency.
Intuition Check
A headphone is not the same as the whole headset. The headphone is the listening part; a headset may also include a microphone for speaking.
Example Sentence 1
The pilot plugged the headphones into the audio panel before starting the engine.
Example Sentence 2
Noise from the engine made it hard to hear until the volume on the headphone was increased.