A machine with a rotating blade for cutting grass.(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 "lawn mower" in a sentence
"From the chopper's armored cockpit, Delta-One watched his rotors tear into the sub's cable like a giant lawn mower running over a steel chain."
"It was so quiet that the sounds of the warm October afternoon outside could be heard: birds singing, a lawn mower humming, and the laughter of little, snotty-nosed kids playing."