compression

Compression is a initialism of rar.

As a noun compression

is an increase in density; the act of compressing, or the state of being compressed; compaction.

As an adjective rar is

rare.

As nouns the difference between compression and compressure

is that compression is an increase in density; the act of compressing, or the state of being compressed; compaction while compressure is compression.

As a noun compression

is an increase in density; the act of compressing, or the state of being compressed; compaction.

As an adjective compressionless is

without compression.

As nouns the difference between compression and aftercooling

is that compression is an increase in density; the act of compressing, or the state of being compressed; compaction while aftercooling is the cooling of a gas subsequent to compression.

As nouns the difference between compression and supercompression

is that compression is an increase in density; the act of compressing, or the state of being compressed; compaction while supercompression is extreme compression.

As nouns the difference between compression and baselayer

is that compression is an increase in density; the act of compressing, or the state of being compressed; compaction while baselayer is a tight undergarment worn to strengthen muscles it provides compression which helps an athlete's performance.

As nouns the difference between compression and companding

is that compression is an increase in density; the act of compressing, or the state of being compressed; compaction while companding is (electronics) a process in which noise in a signal is reduced by selective compression and expansion.