compression bandage vs tourniquet

compression bandage and tourniquet both are nouns.

Word	Noun	Adjective	Verb	Adverb
compression bandage	Yes	No	No	No
tourniquet	Yes	No	No	No

As nouns, compression bandage and tourniquet are synonyms defined as:

compression bandage and tourniquet: bandage that stops the flow of blood from an artery by applying pressure

compression bandage (noun)	tourniquet (noun)
bandage that stops the flow of blood from an artery by applying pressure	bandage that stops the flow of blood from an artery by applying pressure