Dross, as of iron; the scale which files from iron when hammered; -- applied as a name to various minerals.
- Geology A chemical sediment or crust, as of porous silica, deposited by a mineral spring.
- A mass formed by sintering.
- To cause (metallic powder, for example) to form a coherent mass by heating without melting.
- To form a coherent mass by heating without melting.