| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Colliers' black spit | Medicine | A well-defined medical entity resulting from the depositions of coal mine dust in the lung and from the reaction to the deposited dust resulting in coal macules, coal nodules, and progressive massive fibrosis (1). Source: European Union. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
