One that edges, such as a tool for trimming the edge of a lawn.(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 "edger" in a sentence
"Drawing from that inspiration, he rigged up an old popcorn can with some wires and hooked it to a rotating edger, and the first string trimmer was born."
"The idea turned an old popcorn can, some wires and an edger into the Weed Eater."
"When you look carefully at Republican Speaker John Boehner's spending proposal for the rest of 2011 you'd think these guys must have been hanging out on one of those newly-discovered exo-planets on the outer edger of our solar system."