| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Humic degradation matter | Mining | Finely comminuted degradation matter in coal, largely but not altogether derived from the woody tissues of plants, and like anthraxylon, largely derived from lignin. (references) | |
| Translucent humic degradation matter | Mining | Transparent humic matter consisting of irregular particles varying greatly in shape and size. Although rounded or ovoid particles are not rare, humic matter is mostly flattened in form and usually of frayed or tattered appearance. The particles are of the same deep red color as the anthraxylon strips, becoming lighter in thinner sections. Syn: THDM. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
