A light on the rear of a vehicle that is activated when the brakes are applied. Also called brake light. (noun)
See traffic light. (noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "stoplight" in a sentence
"A metric called the stoplight process red, yellow, green was set up to track whether actions agreed upon in Afghanistan and Iraq were being implemented or whether policy needed to be adjusted or changed."
"Diann told me that last time she drove him, he asked if a stoplight were a semaphore."
"The woman, however, said the stoplight was her first opportunity to jump from the van."