- a steel bar or rod used to reinforce concrete.
Origin of rebar
1960–65, Americanism; re(inforcing) bar
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for rebar
Its walls are made of thick concrete with rebar reinforcing rods.More Tornado Shelters? Not Necessarily
David Cay Johnston
May 22, 2013
Here follows the motto: "Quotque aderant Vates, rebar adesse Deos."The Age of Shakespeare
Algernon Charles Swinburne
Word Origin and History for rebar
also re-bar, "steel reinforcing rod in concrete," 1961, from re(inforced) bar.
Online Etymology Dictionary, © 2010 Douglas Harper