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The curved plate of a plow that turns over the soil.

[mold + board.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Agriculture) the US spelling of mouldboard
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈmoʊldˌbɔrd, -ˌboʊrd)

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.
[1300–50; earlier moldbred, Middle English mold bred. See mold3, mold1, board]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.


Sometimes used as short for a Moldboard plow (Walking turning plow). The moldboard is the curved part of a turning plow that turns over and pulverizes the slice of earth cut by the plowshare.
1001 Words and Phrases You Never Knew You Didn’t Know by W.R. Runyan Copyright © 2011 by W.R. Runyan
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.Moldboard - wedge formed by the curved part of a steel plow blade that turns the furrowmoldboard - wedge formed by the curved part of a steel plow blade that turns the furrow
moldboard plow, mouldboard plough - plow that has a moldboard
wedge - something solid that is usable as an inclined plane (shaped like a V) that can be pushed between two things to separate them
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
In this case Tollner et al [63] compared the effect of no tillage and moldboard on soil bulk density and reported that in depth of 15 to 25 cm of soil bulk density in no tillage was more than moldboard but in depth of 30 to 45 cm soil bulk density in moldboard was more than no tillage.
The rapid adoption of minimum tillage put the moldboard plow on the endangered species list.
The new facility complements the existing 20 m (65.6 ft) long, 1.75 m (5.7 ft) wide, and 0.8 m (2.6 ft) deep soil dynamics laboratory which has proved to be very successful for more than 20 years for many PhD student projects and commercial research, helping to develop the wide furrow moldboard plow for Kverneland, the Solo cultivator for Simba, a shallow slurry injector for Greentrac, the Going Stick for evaluating the "going" at racecourses for Turftrax, aspects of tillage train development for Vaderstad, the new traction control systems for Land Rover, mobility strategies for defense vehicles, and sub-sea cable laying and recovery plows for Global Marine Systems.
* Put a board between the ground and any moldboard. That way the mud can't freeze the moldboard in place.
(1998) reported higher P losses associated with moldboard plow (1.30 kg/ha or 1.16 lb/ac) versus ridge tillage (0.16 kg/ha or 0.14 lb/ac).
One of the most enduring symbols of modern agriculture is that of the moldboard plow.
The high input treatment consisted of soil test-based fertilizer application for 8.15 Mg [ha.sup.-1] yield goal; prophylactic pre- and post-emergence herbicide application; prophylactic soil insecticide application; and tillage consisting of fall moldboard plow, spring disk, and spring field cultivator operations.
"At the time, the moldboard plow was the only available tool," says Weslaco agronomist Jim Smart.
Products include one-way snowplows (fixed and trip moldboard) V-plows, power reversible snow plows (trip moldboard, trip edge, and expressway/dual taper), benching snow wings (truck and motor grader mounted), dual-function direct hydraulic snow wings (truck, front end loader, and motor grader mounted), trip edge snow wings, fixed dozers, and angling snow dozers as well as hitch systems, quick couplers, and scarifiers.
While there are many aspects of moldboard plows that I could cover, coulters always seem to be an area in which old plows are deficient.
Four different tillage including a moldboard plow followed by rotivator, once rotivator, twice rotivator, no tillage and finally direct seeding.