superharden
/ˌsupərˈhɑrdən/
verb
- To make a material extremely hard, often through a special process like heat treatment or adding chemicals.
- Scientists are trying to superharden glass to make it shatterproof.
- They superharden the metal by heating it to a very high temperature and then cooling it quickly.
- The factory uses a new technique to superharden steel for industrial blades.
Synonyms
Antonyms