What does "vulcanize" mean?

To treat rubber with heat and (usually) sulfur to harden it and make it more durable.

What is a synonym for "vulcanize"?

Common synonyms include: blaze, blister, brand, burn, burn in, burn off.

Pronounced //ˈvʌl.kə.naɪz//.

/ˈvʌl.kə.naɪz/ verb

verb ·Uncommon ·Advanced level

Verb

1
To treat rubber with heat and (usually) sulfur to harden it and make it more durable. transitive
2
subject to vulcanization wordnet
3
To undergo such treatment. intransitive
"These vulcanized hearts, they only become more resistant when you ask for mercy."
4
undergo vulcanization wordnet

"These vulcanized hearts, they only become more resistant when you ask for mercy."