English Dictionary

catalyst

/ˈkæt.əl.ɪst/

noun

(chemistry) A substance that increases the rate of a chemical reaction without being consumed in the process. / Something that encourages progress or change.

The catalyst accelerated the chemical reaction.

意味（1）

(chemistry) A 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.

意味（2）

Something that encourages progress or change.

Economic development and integration are working as a catalyst for peace.

意味（3）

(literature) An inciting incident that sets the successive conflict into motion.

意味（4）

(automotive) A catalytic converter.

意味（5）

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