vulcanised

/ˈvʌlkənaɪzd/
adjective
  1. Treated with sulfur and heat to make rubber stronger, more elastic, and more durable.
    • Vulcanised materials resist cracking even in very cold weather.
    • The soles of these boots are made from vulcanised rubber, so they are very tough.
    • Vulcanised rubber is used to make car tires that last for thousands of miles.
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