packing
[OED]: 1. c. Science and Math. The arrangement of objects, individuals, groups, or constituent parts in a (defined or restricted) space; spec. the spatial arrangement of the atoms, ions, etc., of a crystalline structure; the folding or coiling of a nucleic acid, protein, or other long-chain molecule.
An arrangement of like objects that occupies a minimum volume or expends the least energy. Atoms and molecules form crystal structures with various close packing arrangements. When tissues are compressed the constituent cells form into approximate 14-sided solid figures (orthotetrakaidecahedra) that leave no voids between.
