an iron or steel rod serving as a structural tie, especially one keeping the lower ends of a roof truss, arch, etc., from spreading.
Automotive. a rod that serves as part of the linkage in the steering system.
Origin of tie rod
First recorded in 1830–40
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for tie rod
any rod- or bar-shaped structural member designed to prevent the separation of two parts, as in a vehicle
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