- Also called sickle bar. (in a mower, binder, or combine) a bar with triangular guards along which a knife or blade runs.
- a bar holding the cutting tool in a boring machine or lathe.
Origin of cutter bar
First recorded in 1865–70
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for cutter bar
A second clipping will be required later, with cutter-bar tilted well upward.
When the cutter-bar of the mower is tilted upward, the danger of smothering is reduced.
It had open guard fingers, a knife made of triangular sections, reciprocating in the guard, and a cutter-bar on a hinged frame.Inventions in the Century
William Henry Doolittle
This machine does not cut the wheat close to the ground, but the cutter-bar, over twenty-five feet in length, takes off the heads.
The basic idea in the reaper, the cutter-bar, is the whole of the mower, and the machine developed with the reaper.