| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Etch method | Mining | A method, using a soda-lime glass tube partially filled with a dilute solution of hydrofluoric acid, of determining the angle at which a borehole is inclined at any specific point of its course below the collar. See also: acid-dip survey. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
