| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Benching iron | Mining | An item of surveying equipment, comprising a triangular steel plate with pointed studs at the corners. These studs are driven into the ground in the desired position. The plate is used either as a temporary bench mark or as a change point in running a line of levels. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
