冗じょう長ちょう度どじょうちょうどMeanings1nounredundancy (information theory)Technical term in information theory; refers to the amount of extra data beyond the essential information.データ圧あっ縮しゅくは冗じょう長ちょう度どを減へらすことで実じつ現げんされる。Data compression is achieved by reducing redundancy.