DCHP-1 Online
trenching-tool Fur Trade, Obs. 
n. an ice-cutting tool.
See also: trench ((n.))
- 1763 (1901) The most common way of taking the beaver is that of breaking up its house, which is done with trenching-tools, during the winter, when the ice is strong enough to allow of approaching them.
- 1763 (1901) The most common way of taking the beaver is that of breaking up its house, which is done with trenching-tools, during the winter, when the ice is strong enough to allow of approaching them.