The Collaborative International Dictionary of English v.0.48:
brakes \brakes\ n. the combination of interacting parts that work to slow a moving vehicle. Syn: brake system. [WordNet 1.5]WordNet (r) 3.0 (2006):
brakes n 1: a braking device consisting of a combination of interacting parts that work to slow a motor vehicle [syn: brake system, brakes]