| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Extraneous ash | Mining | Ash in coal that is derived from inorganic material introduced during formation of the seam, such as sedimentary particles, or filling cracks in the coal. See also: ash; ash yield; inherent ash. Syn: secondary ash; sedimentary ash. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
