• WordNet 3.6
    • n trestlework a supporting structure composed of a system of connected trestles; for a bridge or pier or scaffold e.g.
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Webster's Revised Unabridged Dictionary
    • n Trestlework A viaduct, pier, scaffold, or the like, resting on trestles connected together.
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Century Dictionary and Cyclopedia
    • n trestlework A series of trestles and connected framing, supports, etc., forming a viaduct, as for a railway. Trestlework may be of either wood or iron. It is much used in railroad-construction for viaducts and in the construction of bridges, and is often employed in hydraulic engineering for supporting trunks or sluices for conducting water across gulches, etc. The term was originally, and is now more specifically, applied to wooden trestles, which it generally denotes when used without qualification.
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In literature:

Nearer and higher loomed the steel trestlework upon which rested the giant engine.
"The Man Who Rocked the Earth" by Arthur Train
In 1868 the remaining trestlework was replaced with Bollman trusses.
"The Engineering Contributions of Wendel Bollman" by Robert M. Vogel
Upon the trestlework were perched three boys and a man, fishing.
"Historic Waterways--Six Hundred Miles of Canoeing Down the Rock, Fox, and Wisconsin Rivers" by Reuben Gold Thwaites
In 1868 the remaining trestlework was replaced with Bollman trusses.
"Smithsonian Institution - United States National Museum - Bulletin 240" by Anonymous
The trestlework is burned in places and across these we passed the best we could.
"Diary of an Enlisted Man" by Lawrence Van Alstyne

In news:

Multiple residents were displaced after fire gutted an apartment building Tuesday at the intersection of National and Trestlework Rogers roads, bringing firefighters from around the Ohio Valley to battle the relentless flames.