catalyst

Composé de catalysis et du suffixe -ist.

catalyst

1. (Chimie) Catalyseur.
   • Enzymes, the catalysts of biological systems, are remarkable molecular devices that determine the pattern of chemical transformations. — (Lubert Stryer Biochemistry, 3^e édition, page 177, 1988)
2. (Figuré) Catalyseur.
   • Economic development and integration are working as a catalyst for peace.

   Le développement et l’intégration économique ont servi de catalyseur pour la paix.

   • It was a morning baptized by my first cup of coffee, freshly brewed over a gravel-bar fire, while they celebrated with the stronger catalyst of sour-mash whiskey in their fishing-vest cups. — (Ernest George Schwiebert, Trout, volume 2, 1978)
   • Israel’s fear for the reactor—rather than Egypt’s of it—was the greater catalyst for war. — (Michael B. Oren, Six Days of War: June 1967 and the making of the modern Middle East, page 76, 2004)
   • Rosa Parks was a true catalyst for change and she was only one person. Hearing about Rosa Parks and her protest showed me that there is hope for me and all the students in Ms. G’s classes to truly be catalysts for change. — (The Freedom Writers, with Erin Gruwell, The Freedom Writers Diary: How a Teacher and 150 Teens Used Writing Change Themselves and the World Around Them, Diary 74, 2006)
3. (Automobile) Pot catalytique.

pot catalytique

• catalytic converter

catalyseur au sens figuré

• inhibitor

• catalyse, catalyze
• catalysis
• catalytic

• enzyme

• (Royaume-Uni) : \ˈkæt.əl.ɪst\
• (États-Unis) : \ˈkæt.ə.lɪst\

• catalyst sur l’encyclopédie Wikipédia (en anglais) 

• Cet article utilise des informations de l’article du Wiktionnaire en anglais, sous licence CC-BY-SA-3.0 : catalyst.