three-ply
- s having a thickness made up of three layers or strands
three-ply cloth
three-ply yarn
- A low-wing monoplane with retractable landing gear, the new bomber is of three-ply all-metal construction.
- Doors are heavy, made of a three-ply, soundproof material, and they have substantial locks.
- On a four-day state visit to Yugoslavia, the Turk was doing his best to persuade the third partner in the three-ply Balkan pact (Turkey-Greece-Yugoslavia) to forget its dreams of .