Rust Is Caused by __ on Certain Metals
This page is the CodyCross answer for the clue below from Spa Time, Group 809, Puzzle 3 (Fruity Cocktails).
Question is: Rust Is Caused by __ on Certain Metals
and the answer is: OXIDATION
Word Meaning:
OXIDATION — The combination of a substance with oxygen.
Definitions from Wiktionary.