mass copper
noun
Copper occurring naturally in large masses.
Origin
Late 19th century.
- production testing
- production value
- production well
- productise
- productive
- productively
- productiveness
- productivism
- productivist
- productivity
- productization
- methanogenic
- methanoic acid
- methanol
- methanolic
- methanolysis
- methanometer
- methanotroph
- methanotrophic
- methantheline
- methapyrilene
- methaqualone
- methedrine
- metheg
- methegh