| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Blocking and wedging | Mining | A method of holding mine timber sets in place. Blocks of wood are set on the caps directly over the post supports and have a grain of block parallel with the top of the cap; wedges are driven tightly between the blocks and the roof. See also: block. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
