master cylinder vs brake cylinder

master cylinder and brake cylinder both are nouns.

Word	Noun	Adjective	Verb	Adverb
master cylinder	Yes	No	No	No
brake cylinder	Yes	No	No	No

As nouns, master cylinder and brake cylinder are synonyms defined as:

master cylinder and brake cylinder: a cylinder that contains brake fluid that is compressed by a piston

Other synonyms of master cylinder include hydraulic brake cylinder.

master cylinder (noun)	brake cylinder (noun)
a cylinder that contains brake fluid that is compressed by a piston	a cylinder that contains brake fluid that is compressed by a piston