Definitions

1. noun

a hard, silver-white, ferromagnetic, ductile, and malleable chemical element with atomic number 42.

“Molybdenum is also known as moly in some contexts.”

2. noun

a compound, especially a mineral, containing molybdenum.

“The geologist identified the moly in the mine’s ore deposits.”

3. verb

to cover or protect with moly or a moly-based coating, especially to prevent corrosion.

“The engineer decided to moly the metal to prevent rusting.”