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sprue1

[sproo]
noun
  1. Metallurgy.
    1. an opening through which molten metal is poured into a mold.
    2. the waste metal left in this opening after casting.
  2. Metalworking. a channel in a forging die permitting the die to clear that part of the rough piece not being forged.
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verb (used with object), sprued, spru·ing.
  1. to cut the sprues from (a casting).
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Origin of sprue1

First recorded in 1820–30; origin uncertain
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for spruing

sprue1

noun
  1. a vertical channel in a mould through which plastic or molten metal is introduced or out of which it flows when the mould is filled
  2. plastic or metal that solidifies in a sprue
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Word Origin

C19: of unknown origin

sprue2

noun
  1. a chronic disease, esp of tropical climates, characterized by flatulence, diarrhoea, frothy foul-smelling stools, and emaciation
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Word Origin

C19: from Dutch spruw; related to Middle Low German sprüwe tumour

sprue3

noun
  1. East London dialect an inferior type of asparagus
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Word Origin

C19: of unknown origin
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

Word Origin and History for spruing

sprue

n.

c.1830, of unknown origin.

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Online Etymology Dictionary, © 2010 Douglas Harper

spruing in Medicine

sprue

(sprōō)
n.
  1. A chronic disease that is characterized by diarrhea, steatorrhea, emaciation, and anemia, caused by defective absorption of nutrients from the intestinal tract.psilosis
  2. Wax or metal used to form the pathway for forcing molten metal into a mold in the making of a dental casting.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.