variable compression
nounUK /ˈveəriəbl kəmˈprɛʃən/
US /ˈveriəbl kəmˈprɛʃən/
A way for an engine to change how much it squeezes the air and fuel inside it.
The car's variable compression engine saves fuel when you drive slowly.
RELATED WORDS
OTHER MEANINGS
2. In computing, shrinking files by different amounts depending on the data.
The app uses variable compression to make photos smaller without losing quality.
3. In video, changing how much the picture is squished to save space.
Streaming services use variable compression to keep videos smooth on slow internet.
4. In sound, making loud parts quieter and soft parts louder by different amounts.
The audio tool applied variable compression so the music sounded even.