D defs.my
Entry 2 senses Webster, 1913

Trestle

/trĕs'-əl/ · Tres·tle · IPA /ˈtɹɛsəl/
01 n. A movable frame or support for anything, as scaffolding, consisting of three or four legs secured to a top piece, and forming a sort of sto…
  1. 1.
    A movable frame or support for anything, as scaffolding, consisting of three or four legs secured to a top piece, and forming a sort of stool or horse, used by carpenters, masons, and other workmen; also, a kind of framework of strong posts or piles, and crossbeams, for supporting a bridge, the track of a railway, or the like.
  2. 2.
    The frame of a table.
Phrases & compounds
Trestle board — a board used by architects, draughtsmen, and the like, for drawing designs upon; -- so called because commonly supported by trestles.
Trestle bridge — See under Bridge, n.