contact process

American  

noun

Chemistry.

1. a catalytic method for producing sulfuric acid from sulfur dioxide and oxygen.

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Etymology

Origin of contact process

First recorded in 1900–05

Example Sentences

Former Ireland back row Jamie Heaslip was sympathetic to England's plight, but believed World Rugby's head contact process, which looks at the degree of danger in the collision and whether there was any mitigation, was followed correctly.

From BBC

More than 2,000 players have entered their names since Dec. 5, necessitating coaches and support staff go through an accelerated evaluation and contact process.

From Seattle Times

Ludlow's sanction can be reduced by one further game if he completes World Rugby's head contact process coaching intervention programme.

From BBC

"While the mayor of our nation’s largest city is busy running around Iowa and getting upstaged by the mayor of South Bend, Indiana, there are real problems here at home. New York City Police officers are continuing to suffer with wages 30 percent below market rate, because the mayor has totally checked out of our contact process."

From Salon

The acid commonly used is made by the "contact" process, in which sulphur dioxide is oxidized to sulphur trioxide, and then, with the addition of water, changed to sulphuric acid.

From Project Gutenberg