mouldboard
US moldboard
- the curved blade of a plough, which turns over the furrow
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Examples from the Web for mouldboard
Historical Examples
For breaking new land a plow with a long, gradually sloping share and mouldboard is used.
The First Book of FarmingCharles L. Goodrich