Noun: compaction kum'pak-shun
- The process or act of making more dense by compression
"Sandstone forms by compaction of sand grains"
- An increase in the density of something
"The compaction of the urban area led to traffic congestion";
- compression, concretion, densification
Derived forms: compactions
Type of: compressing, compression, concentration
Antonym: rarefaction
Encyclopedia: Compaction