喜樂美語
  1. 1

    In chemistry, a catalyst is something that makes a chemical reaction happen faster, without being used up itself. Outside of science, people use 'catalyst' for anything — an event, a person, an idea — that causes a big change to start happening quickly, like 'the accident was a catalyst for new safety laws.'

    催化劑；促成因素

    例句逐字對照、搭配詞、易混淆字

    這一義的完整解析還沒打開。訂閱後可以看到例句怎麼拆、常跟哪些字一起出現， 以及容易跟它搞混的字。

    看看訂閱內容

組成From Greek 'kata-' (down) + 'lyein' (to loosen) — the idea of loosening something so a reaction can happen.

同家族的字

  • analysisshares the Greek root 'lyein,' to loosen or break apart
  • paralysisshares the same Greek root 'lyein'

原始詞典資料5 筆記錄

以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。

catalystnoun/ˈkæt.ɪ.lɪst/

  • 1

    chemistrynatural-sciencesphysical-sciencesA substance that increases the rate of a chemical reaction without being consumed in the process.

    • Enzymes, the catalysts of biological systems, are remarkable molecular devices that determine the pattern of chemical transformations.
  • 2

    Something that encourages progress or change.

    • (obsolete)
    • Economic development and integration are working as a catalyst for peace.
  • 3

    literaturemediapublishingAn inciting incident that sets the successive conflict into motion.

    • The current view by both Labour and Conservative politicians is that the state of the UK railway is unsustainable, and the pandemic acted as a catalyst in exposing its weaknesses.
  • 4

    automotivetransportvehiclesA catalytic converter.

  • 5

    fantasyAn object that facilitates the casting of a spell (such as a magic wand).

資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。