matchboard
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English
[edit]![](http://upload.wikimedia.org/wikipedia/commons/thumb/9/97/Veer_en_groef.jpg/220px-Veer_en_groef.jpg)
edge of board with matched tongue on right
![](http://upload.wikimedia.org/wikipedia/commons/thumb/8/82/Dusheme.jpg/220px-Dusheme.jpg)
Etymology
[edit]Noun
[edit]matchboard (countable and uncountable, plural matchboards)
- (carpentry) A type of wooden board that connects with others using a tongue and groove system
- (sand casting) A thin piece of material (such as wood, plaster, or metal) that forms and aligns the matched parting surfaces for the two parts (the cope and the drag) of a molding box or flask, to which board patterns are attached in some casting methods.