Definitions for tapholeˈtæpˌhoʊl
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Random House Webster's College Dictionary
tap•holeˈtæpˌhoʊl(n.)
a hole in a blast furnace, steelmaking furnace, etc., through which molten metal or slag is tapped off.
Category: Metallurgy
Origin of taphole:
1585–95
Citation
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"taphole." Definitions.net. STANDS4 LLC, 2013. Web. 19 May 2013. <http://www.definitions.net/definition/taphole>.