不ふ可か逆ぎゃく圧あっ縮しゅくふかぎゃくあっしゅくMeanings1nounlossy compressioncomputing›Technical term in computing for compression methods that discard some data, making the original data unrecoverable.JPEGは不可逆圧縮じぇいぺぐはふかぎゃくあっの代表的