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moldboard

American  
[mohld-bawrd, -bohrd] / ˈmoʊldˌbɔrd, -ˌboʊrd /

noun

  1. the curved metal plate in a plow that turns over the earth from the furrow.

  2. a large blade mounted on the front of a bulldozer to push loose earth.

  3. a board forming one side or surface of a mold for concrete.


moldboard British  
/ ˈməʊldˌbɔːd /

noun

  1. the US spelling of mouldboard

"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

Etymology

Origin of moldboard

1300–50; replacing earlier moldbred, Middle English mold bred. See mold 3 moldboard ( for defs. 1, 2 ), mold 1 moldboard ( for def. 3 ), board

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

He documented the democratizing effect of the close-order military drill, the moldboard plow's transformation of agriculture, the impact of potato farming.

From US News • Jul. 12, 2016

Medieval Europe had gadgets unknown to, or undeveloped by, the ancient Greeks and Romans -- moldboard ploughs, stirrups, advanced water-wheels, clocks.

From Salon • Jan. 18, 2011

Its central tenet is retiring the old moldboard plow, which laid the earth open to wind and water erosion.

From Time Magazine Archive

After pushing an accumulation of vines and weeds from the moldboard, I lifted the lines from the dust and found hitched to that plow the finest team I ever held a rein on.

From Time Magazine Archive

European agricultural production exploded after the arrival of the moldboard plow.

From "1491" by Charles C. Mann