brake light

noun — 2 senses

brake light

noun
1

Automotive, Transport, Vehicles A light on the rear of a vehicle that is activated when braking.

2

Automotive, Transport, Vehicles A light on a vehicle's instrument panel indicating a failure or malfunction of the vehicle's brake system.

Related terms
taillight, indicator light

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.