The key catalyst for the price of gold moving upward has been its price in foreign currencies.

In living organisms, the key catalysts are enzymes.

The other key catalyst was his membership of the BlackStar club within Ecademy.

"The low scores, significant negative feedback from customers, and no signs of improvement in the weekly operating metrics were key catalysts" for the downgrade, Morgan Stanley said.

The incident was a key catalyst in forming the Alumni Advisory Committee in January 1890.

"U S West is the key catalyst," said David Londoner, a media analyst at Wertheim Schroder & Company.

For example, cyanide is a key catalyst in the benzoin condensation, a classical example of polarity inversion.

The Penarth Marina development was one of the key catalysts to the similar later redevelopment of the Cardiff Bay area.

I firmly believe that another key catalyst for economic growth would be to turn cohesion policy into something more than simply a propaganda slogan.

Based on these observations, Klein began what would turn out to be two key catalysts.