Meaning of truss rod

truss' rod"

Pronunciation: [key]
— Building Trades. Building Trades.
  1. a tie rod in a truss.
  2. a diagonal iron or steel reinforcement in a wooden beam.
  3. any iron or steel rod serving as a tension member.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.