Dictionary.com
definitions

I-bar

[ahy-bahr]

noun

an I-beam used for structural support, as in buildings or bridges.

RELATED CONTENT

bars
Read more in this article about some frequently asked questions and fun facts related to our definitions.
READ MORE
Klondike bar
Read more in this article about some frequently asked questions and fun facts related to our definitions.
READ MORE

Origin of I-bar

First recorded in 1885–90

I-beam

[ahy-beem]

noun

a rolled or extruded metal beam having a cross section resembling an I.Compare H-beam.

Origin of I-beam

First recorded in 1890–95
Also called I-bar [ahy-bahr] /ˈaɪˌbɑr/.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for i-bar

I-beam

noun

a rolled steel joist or a girder with a cross section in the form of a capital letter ICompare H-beam
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