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viaduct

[vahy-uh-duhkt] /ˈvaɪ əˌdʌkt/
noun
1.
a bridge for carrying a road, railroad, etc., over a valley or the like, consisting of a number of short spans.
Origin
1810-1820
1810-20; < Latin via way + (aque)duct
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for via duct

viaduct

/ˈvaɪəˌdʌkt/
noun
1.
a bridge, esp for carrying a road or railway across a valley, etc, consisting of a set of arches supported by a row of piers or towers
Word Origin
C19: from Latin via way + dūcere to bring, on the model of aqueduct
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for via duct

viaduct

n.

1816, from Latin via "road" (see via) + -duct as in aqueduct. French viaduc is an English loan-word.

Online Etymology Dictionary, © 2010 Douglas Harper
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Encyclopedia Article for via duct

viaduct

type of long bridge or series of bridges, usually supported by a series of arches or on spans between tall towers. The purpose of a viaduct is to carry a road or railway over water, a valley, or another road. The viaduct is both functionally and etymologically related to the aqueduct, which carries water; both were developed by Roman engineers.

Learn more about viaduct with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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