dross /dros/

1. The scum of melting metals
2. Waste matter
3. Small or waste coal
4. Refuse
5. Anything worthless
6. Rust
7. Lucre

drossˈiness noun

• protospatharius
• protostar
• protostars
• protostele
• protosteles
• protostome
• protostomes
• proto team
• Proto team
• Prototheria
• prototherian
• Prototracheata
• prototroph
• prototrophic
• prototrophs
• prototrophy
• prototypal
• prototype
• prototyped
• prototypes
• prototypical
• prototyping
• protoxide
• protoxides
• protoxylem