The Collaborative International Dictionary
Trestle \Tres"tle\, n. [OF. trestel, tresteay, F. tr['e]teau; probably from L. transtillum a little crossbeam, dim. of transtrum a crossbeam. Cf. Transom.] [Written also tressel.]
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.
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The frame of a table.
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.
Wiktionary
n. (alternative spelling of trestleboard English)
Usage examples of "trestle board".
The big man turned, and Isana could all but feel the stirring in the earth as he drew upon his fury for strength, lifted the broken trestle board of the table as though it did not weigh as much as a grown man, and swung it toward her.
It strikes me as sacrilegious conceit of the worst sort-this character probably has never been any closer to His Trestle Board than you or I.