Definition of vulcanize in English:


(also vulcanise)


  • Harden (rubber or rubber-like material) by treating it with sulphur at a high temperature.

    ‘the development of a method for fixing vulcanized rubber firmly on to mild steel’
    • ‘In the early twentieth century vulcanized rubber was favoured, and latterly hard plastic.’
    • ‘Ricky Davis bounces around like he's made of vulcanized rubber.’
    • ‘High-NBS vulcanized rubber maintains traction over a full range of terrain.’
    • ‘Synthetic rubber erasers are vulcanized (cooked under pressure) to cure the rubber, but vinyl erasers skip this part.’
    • ‘The implants are made of vulcanized silicone or silastic, a clear, hard, rubber-like material, and secured to the skeleton by insertion into a pocket or with small titanium screws that anchor to the underlying bone.’
    • ‘For example, I can recall from elementary school the story of Charles Goodyear and vulcanizing rubber.’
    • ‘They can be vulcanised directly into the tyre material.’
    • ‘And the rubber is now injection-molded (in Maine) rather than vulcanized, making a lighter boot with surer traction.’
    • ‘We use wheels made out of vulcanized rubber, which are much sturdier and more durable than wood and easier on the environment than steel.’
    • ‘It wasn't buoyant, so, by way of appendix, he fitted a motor tube - two tubes vulcanised together - around the gunwale.’
    • ‘The meal was a constant struggle with pizza crust that can only be described as vulcanized.’
    • ‘Users of the material will see a silicone fluid appear on the surface of the cured elastomer; this self-lubricating technology is designed, in part, to prevent vulcanized silicone surfaces from sticking to each other.’
    • ‘Oh, when I got seriously into waterfowling 35 years or so ago, all waders and hip boots were made of vulcanized rubber, and it was possible to get a perfectly serviceable ‘hot’ patch on a puncture.’
    • ‘The ball the schoolboys originally swatted was a globe of vulcanized India rubber pierced with a hole.’
    • ‘This rubber can be vulcanized (treated under heat and pressure with sulfur to improve elasticity and strength).’
    • ‘I am allergic to peanut skins and vulcanized rubber.’
    • ‘Condoms became known as rubbers after 1844, when Charles Goodyear patented his process for vulcanizing rubber and factories began mass-producing rubber condoms.’
    • ‘With all of their manufactured steel, vulcanized rubber, and processed plate glass, Model Ts were selling at about 25 cents a pound - perhaps the best bargain in the industrialized world.’
    • ‘In use, the gamepad is comfortable to hold, with a vulcanised rubber grip.’
    • ‘Some of the first useful polymers were chemically modified natural polymers such as vulcanized rubber and cellulose acetate.’
    solidify, set, become hard, become solid, congeal, clot, coagulate, stiffen, thicken, cake, freeze, bake, crystallize
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Early 19th century (in the sense ‘throw into a fire’): from Vulcan + -ize.