a rolled steel or iron shape having a U-shaped cross section, with two narrower sides at right angles to a broader one.
Origin of channel iron
First recorded in 1885–90
Also called channel bar.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a rolled-steel bar with a U-shaped cross sectionSometimes shortened to: channel
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