1. A supporting tower used to support a bridge
   "The railway trestle spanned the deep valley, allowing trains to cross safely"
    
2. Sawhorses used in pairs to support a horizontal tabletop
   "They set up trestles in the backyard to create a makeshift buffet table for the party"

Derived forms: trestles

Type of: buck, horse, sawbuck [N. Amer], sawhorse, supporting tower

Part of: bridge, span, trestle table

Encyclopedia: Trestle