ploughshare
plow shayr
- n a sharp steel wedge that cuts loose the top layer of soil
- Stumbling over furrows of Kansas corn belt near Arkansas City, reaching in with the ploughshare to turn over a deeper layer of rich black loam, a farmer recently encountered an .
- All is studied, all calculated, from the pitch of a ploughshare to the cost of lubricating oil in the tractor that hauls the loaded wheat wagons to the fireproof bins (100,000 bu .