ランレングスMeanings1nounrun lengthTechnical term used in data compression and coding, referring to the number of consecutive identical elements in a sequence.ランレングス圧あっ縮しゅくは、同おなじ値ちが連れん続ぞくするデータに有ゆう効こうです。Run-length encoding is effective for data with consecutive identical values.