/ Dictionary / Index T truss rod: Meaning and Definition of Find definitions for: truss' rod" Pronunciation: [key] ? Building Trades. Building Trades. a tie rod in a truss. a diagonal iron or steel reinforcement in a wooden beam. any iron or steel rod serving as a tension member. Random House Unabridged Dictionary, Copyright 1997, by Random House, Inc., on Infoplease. trussing trust Related Content Daily Word Quiz: wizened Analogy of the Day: Today?s Analogy Spelling Bee: Today?s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language