不ふ可か逆ぎゃく圧あっ縮しゅく

noun

lossy compression

Technical term in computing for compression methods that discard some data, making the original data unrecoverable.

• JPEGは不ふ可か逆ぎゃく圧あっ縮しゅくの代だい表ひょう的てきな画が像ぞう形けい式しきです。

  JPEG is a typical image format that uses lossy compression.

• 不ふ可か逆ぎゃく圧あっ縮しゅくでは、元もとのデータを完かん全ぜんには復ふく元げんできません。

  With lossy compression, the original data cannot be fully restored.