触媒（しょくばい、shokubai）
- catalyst

The Japanese word 触媒 しょくばい (shokubai) translates to "catalyst" in English. A 触媒 is a substance that speeds up a chemical reaction without being consumed in the process. It lowers the activation energy required for the reaction to occur.

⚫︎ 触媒は反応速度を速めます。 Translation: The catalyst speeds up the reaction rate. ⚫︎ この化学反応には触媒が必要です。 Translation: A catalyst is needed for this chemical reaction.

This word is primarily used in scientific and technical contexts, especially in chemistry. It can also be used metaphorically to describe something or someone that accelerates a process or change. You would use 触媒 when discussing chemical reactions, industrial processes, or situations where something facilitates change.

The word 触媒 is typically written in kanji. ・ Reading: しょくばい (shokubai) ・ Hiragana: しょくばい ・ Kanji: 触媒 There are no other common ways to write this word, nor are there variations in the okurigana.

There aren't many direct synonyms in Japanese for 触媒 because it is a very specific scientific term. However, words that express the idea of facilitation or acceleration in a broader sense could be considered related.

While there isn't a direct antonym, something that inhibits or slows down a reaction could be considered the opposite of a 触媒.

この反応では、白金が《触媒として使用されます。》 ・Translation: In this reaction, platinum is used as a catalyst. ・Explanation: This sentence explains that platinum functions as a 触媒 in a specific chemical reaction.

彼の提案は、プロジェクトの成功への《触媒となった。》 ・Translation: His proposal became a catalyst for the project's success. ・Explanation: This sentence uses 触媒 metaphorically to describe something that helped speed up the project's progress.

The word 触媒 is a Sino-Japanese compound word. ・触 (shoku) means "to touch" or "to contact." ・媒 (bai) means "a medium" or "a go-between." Therefore, the word conceptually represents something that "touches" or "contacts" a reaction, facilitating it without being fundamentally changed itself. The origin comes from the translation of the word "catalyst" into Japanese.