compression

B2 · Upper Intermediate Uncountable noun Computing

n. making a computer file smaller so it is easier to store or send.

n. the process of encoding information using fewer bits than the original representation to save storage space or transmission time.

“Without data compression, it would take much longer to download high-quality videos.”

“The software uses advanced lossless compression algorithms to ensure that no image detail is sacrificed during the archiving process.”

C1 · Advanced Uncountable noun Music Technical

n. a way of controlling sound so the loud parts are quieter and the quiet parts are louder.

n. the electronic process of reducing the dynamic range of an audio signal by controlling its gain.

“The producer used compression on the vocals to make them sound more consistent.”

“Heavy compression was applied to the drum tracks to give the rock recording a more aggressive and punchy character.”

C1 · Advanced Uncountable noun Technical

n. the part of an engine's movement where the fuel and air are squeezed together.

n. the phase of an internal combustion engine cycle in which the fuel-air mixture is compressed before ignition.

“The mechanic checked the engine because it was losing compression and power.”

“A higher compression ratio in the cylinders generally leads to greater thermal efficiency and improved engine performance.”

C2 · Proficiency Uncountable noun Science Technical

n. when a planet or star is not a perfect circle because it is flattened at the top and bottom.

n. the measure of the deviation of a celestial body from a perfect sphere, typically due to rotation.

“The rapid rotation of Jupiter causes a noticeable compression at its poles.”

“Astronomers calculated the polar compression of the planet to better understand its internal fluid dynamics and rotational velocity.”