Online Google Dictionary

catalyst 中文解釋 wordnet sense Collocation Usage Collins Definition
Noun
/ˈkatl-ist/,
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catalysts, plural;
  1. A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change

  2. A person or thing that precipitates an event
    • - the governor's speech acted as a catalyst for debate
  1. (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected
  2. something that causes an important event to happen; "the invasion acted as a catalyst to unite the country"
  3. (catalytic) relating to or causing or involving catalysis; "catalytic reactions"
  4. Catalyst is the fourth studio album by American rock band New Found Glory, released May 18, 2004 on Geffen Records.
  5. Catalyst was a funk/jazz quartet from Philadelphia, Pennsylvania, whose material presaged the work of later jazz fusion artists. at Allmusic.com The group encountered regional success in the 1970s and have become more widely known since the re-release of their material on CD.
  6. Catalyst is a 27-story 462-unit condominum and apartment building on South Church Street in Charlotte, North Carolina. The concrete and glass skyscraper in Third Ward, designed by Smallwood, Reynolds, Stewart, Stewart, was built by Atlanta-based Novare Group and completed in 2009.
  7. The term economic catalyst is widely used in in the field of economy to describe entrepreneurs or companies who precipate a fundamental change in business or technology. A more precise definition of catalyst is based on the new economics of multi-sided platforms. ...
  8. Catalyst is a student magazine published at the Royal Melbourne Institute of Technology in Melbourne, Australia. The magazine is produced by the RMIT Student Union.
  9. Catalyst is a science centre and museum devoted to the chemical industry. Its full title is Catalyst Science Discovery Centre. It is located in Widnes, Cheshire, in the north west of England, and situated on the north bank of the River Mersey .
  10. (catalysts) materials that assist chemical reactions.
  11. (CATALYSTS) Historically, about half of the rare earths produced were used as catalysts in the petroleum and automotive Industries. For example, cerium is a critical component in both gasoline and the newer diesel catalytic converters found on automobiles and trucks. ...
  12. (Catalysts) Dragon's Blood, Mandrake, Mistletoe
  13. (Catalytic) Leadership that stimulates levels of change beyond the initial steps, with the capacity for deeper and more far-reaching consequences than fully anticipated.
  14. (Catalytic) Some ovens and toaster ovens offer catalytic cleaning or continuous cleaning. Instead of incinerating the soil like a self-cleaning oven, the continuous-clean oven has a chemically treated, textured finish that helps burn off splatters as they happen, at normal cooking temperatures.
  15. (catalytic) A kind of surface found in self-cleaning ovens that helps break down food spills and splatters.
  16. Substance whose presence increases the rate of a chemical reaction, e.g., acid catalyst added to an epoxy resin system to accelerate drying time.
  17. A substance that can increase or decrease the rate of a chemical reaction between substances without being physically consumed in the process. A catalyst, which reduces engine emissions, is used in a catalytic converter.
  18. Substance which markedly speeds up the cure of an adhesive when added in minor quantity as compared to the amounts of primary reactants.
  19. A substance which causes or speeds a chemical reaction. Usually part B of a two-part adhesive.
  20. A substance that changes the rate of a chemical reaction without itself undergoing a permanent change or becoming part of the molecular composition of the product.
  21. a material, such as a metal or synthesized metal complex, that speeds a reaction without being consumed by it. The reaction occurs at the catalyst’s active site.
  22. (n) - person or thing accelerating change
  23. A substance which stimulates change, yet is not directly altered.
  24. Chemicals which are not consumed in a reaction, but, which speed up the reaction rate are called catalysts. Catalysts aid to form a transition state which is lower in energy than the transition state without the catalyst. ...
  25. An element or ion that promotes or assists in a reaction without affecting or changing the element.