DCHP-1 Online
wing-boom Lumbering 
n. a line of logs attached to each other by chains at either side of a sheer-boom.
See also: sheer-boom
- 1896 The section of the sheer-boom thus peculiarly adorned was called the wing-boom. Just above the upper end of the wing-boom, at a place widened out a few feet to receive it, was built a little shanty known as the boom-house.
- 1896 The section of the sheer-boom thus peculiarly adorned was called the wing-boom. Just above the upper end of the wing-boom, at a place widened out a few feet to receive it, was built a little shanty known as the boom-house.