DCHP-1 Online
barrel boom Lumbering 
a kind of boom (def. 3b) used for towing wood in large lakes and salt water and, sometimes, for holding pulpwood, usually made of four logs or square timbers placed around short core blocks and bolted together.
See also: boom ((1)) ((v.)) (def. 3b)
- 1961 As the river's current is dead in the lake, the lumbermen must now tow their logs in barrel booms instead of driving them . . . .
- 1961 Tugs tow mats of them downstream in barrel booms . . . .
- 1961 As the river's current is dead in the lake, the lumbermen must now tow their logs in barrel booms instead of driving them . . . .