tres ‧ tle /ˈtres ə l/ BrE AmE noun [countable] especially British English
[ Date: 1300-1400 ; Language: Old French ; Origin: trestel , from Vulgar Latin transtellum , from Latin transtrum ; ⇨ ↑ transom ]
1 . an A-shaped frame used as one of the two supports for a temporary table
2 . ( also trestle bridge ) a bridge with an A-shaped frame supporting it