case hardening
The process of imparting greater hardness to the surface of a piece of metalThe process of imparting greater hardness to the surface of a piece of metal.
Meaning
2 senses(uncountable)The process of imparting greater hardness to the surface of a piece of metal.
(uncountable)A condition of dried meat in which the exterior is so dry and hard that the interior moisture is sealed in.
Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable