Definition - What does Decompression mean?
Decompression is also known as uncompression.
Techopedia explains Decompression
In the case of lossless compression, the original data is obtained without any loss on decompression. This is not the case with decompression for lossy methods, as there could be loss in the original data, although it may not impact the receiver. Data decompression helps in removing the complications added by data compression. Like compression, decompression can also be slow and time consuming at times and errors in transmission are not uncommon during data decompression.