The tendency of soft materials, such as elastomers, to undergo permanent deformation; the tendency of such materials to have a memory or to lose their ability to recover in a completely elastic manner.

Air which has been reduced in volume and increased in pressure for use in industrial processes.

(automotive) The ratio of the volume between the cylinder head of an internal combustion engine and the piston before and after the compression stroke

A process in modelbuilding, in which bulky and/or repetitious elements of the prototype being modeled are omitted, in order to capture the important details in a smaller-than-scale model.

(physics) Any wave that is propagated by the compression of a fluid; examples include sound

(computing) Any of several techniques for reducing the number of bits needed to represent an item of digital data, either to save storage or to use less bandwidth when transmitting it

(medicine) Any fracture of a bone (most often a load-bearing bone such as a vertebra) caused by compression

A machine used to keep blood and lymph flowing by pushing air through bands or sleeves that are placed on the arms or legs.

The marketing to young children of items for older children and adults.

(military, historical) A kind of mine producing a wide crater.