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trunk line

a major long-distance transportation line.
trunk (def 8).
Origin of trunk line
1850-55 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for trunk line
  • Crowns may be varied on each trunk line to best fit the longitudinal grades of each trunk line.
  • Demand is sufficient that public investment in trunk line fiber is likely to spur private investment in last-mile connections.
  • Each feeder line is connected to the trunk line via a bridger amplifier.
  • Since this is an example problem, only the sewer trunk line is designed for explanation purposes.
  • Prior to the railroad tracks, hikers see the markers for a buried telephone trunk line, and petroleum pipeline that they cross.
British Dictionary definitions for trunk line

trunk line

a direct link between two telephone exchanges or switchboards that are a considerable distance apart
the main route or routes on a railway
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
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