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catalyst

/kat-l-ist/US // ˈkæt l ɪst //UK // (ˈkætəlɪst) //

催化剂,催化剂,催化,触媒

Related Words

Definitions

n.名词 noun
  1. 1
    • : Chemistry. a substance that causes or accelerates a chemical reaction without itself being affected.
    • : something that causes activity between two or more persons or forces without itself being affected.
    • : a person or thing that precipitates an event or change: His imprisonment by the government served as the catalyst that helped transform social unrest into revolution.
    • : a person whose talk, enthusiasm, or energy causes others to be more friendly, enthusiastic, or energetic.

Synonyms & Antonyms

Examples

  • South Africa provides 84% of the platinum group metals needed for fuel cells and automotive catalysts.

  • That time spent in Ghana and across West and sub-Saharan Africa became my catalyst for starting Tala, and I regularly encourage my team members to take on a “figure it out!”

  • Floyd’s death was the catalyst for this year’s earlier protests, and Blake’s shooting reignited the demonstrations.

  • So, more than anything, the endorsement was a catalyst for us to actually say let’s do something, we don’t have to sit around and wait on what are we going to do, endorse or not endorse.

  • Brittney Sykes is a defensive catalyst for the Sparks and dramatically improved her efficiency from two.

  • But the copper performs another important function: working as a catalyst in the distillation process.

  • Brunch is a catalyst, brunch is the enforcer of different-rules-for-the-weekend.

  • We are proud that our film could be a catalyst for even a small change in the ways these boys are treated in China.

  • Other non-design services, like Adobe Business Catalyst, which hosts email fundraising campaigns and e-commerce, also went down.

  • And that question is the catalyst for all the ambiguity throughout the film.

  • This simple act may have been the catalyst which gave Burl the solution to the problem.

  • We may, then, compare the catalyst to what is known as "a good mixer" in society.

  • The tactful hostess, the salon leader, is a social catalyst.

  • When hydrogen peroxide comes in contact with a catalyst, such as permanganate of potash, it breaks down into oxygen and water.

  • The catalyst which was necessary for the final reaction would be brought to him by Polter.