lossless

/ˈlɒslɪs/

adjective

(of a dielectric material, transmission line, etc) designed to have no attenuation Compare lossy

lossless in Technology

algorithm, compression
A term describing a data compression algorithm which retains all the information in the data, allowing it to be recovered perfectly by decompression.
Unix compress and GNU gzip perform lossless compression.
Opposite: lossy.
(1995-03-29)