able to be pressed into a smaller space

compressible gas 可压缩气体

Because plastic bags are light and compressible, they constitute only 2 percent of landfill. 塑料袋因为很轻并且可以压缩，只占填埋垃圾的百分之二。

(of a computer file) able to be made to use less space when it is stored in the memory of a computer or on a disk, by using a special program

Files are compressible in some applications, which saves memory. 文件在某些​​应用程序中是可压缩的，从而节省内存。

The degree to which the data is compressible depends on how many repeating patterns the data has. 数据的可压缩程度取决于其中包含多少重复模式。