compression

nouns

an increase in the density of something
compaction, compression, concretion, densification
the process or result of becoming smaller or pressed together
"the contraction of a gas on cooling"
compression, condensation, contraction
is derived from
compress
encoding information while reducing the bandwidth or bits required
compression
is derived from
compress
antonym
decompression
is a type of (narrower)
the activity of converting data or information into code
encoding, encryption
applying pressure
compressing, compression
is derived from
compress
antonym
decompression