A process for removing redundant data from a digital media file or stream to reduce its size or the bandwidth used.
— Computer ScienceA way of making files smaller, either to fit into restricted storage space or to speed up transmission over the Internet. Popular compression standards include- JPEG- and- GIF- for pictures,- MP3for music files,- MPEG, MP4, AVI- and- MOV- for movie footage, and- zip- for just about everything else.
— Computer Scienceregion in a longitudinal wave where the particles are closer together than normal
— Physics