A timber, reinforced concrete, or steel structure, usually consisting of many short spans, used to support a temporary or permanent bridge or used temporarily to construct a permanent bridge
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
A trestle is a wooden or metal structure that is used, for example, as one of the supports for a table. It has two pairs of sloping legs which are joined by a flat piece across the top
trestles
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(noun.) 14th century. Middle English trestel, from Middle French, from Vulgar Latin transtellum, from Latin transtillum, diminutive of transtrum traverse beam, from trans across; more at THROUGH.