catalyst

catalyst

意味(日本語)

触媒(=catalyzer)

語源

意味(英語)

  • (noun) Chemistry A substance, usually used in small amounts relative to the reactants, that modifies and increases the rate of a reaction without being consumed in the process.
  • (noun) One that precipitates a process or event, especially without being involved in or changed by the consequences: "A free press ... has remained ... a vital catalyst to an informed and responsible electorate” ( Robert O'Neal).

例文

  • Malone had filed the word catalyst in his mental Rolodex, right beside another nagging question.

頭文字:

語源が同じ単語を一緒に覚えよう

analysis

analysis

分析、解剖 ◇ana(=ばらばらに)+lysis(=分解、解く)

語源

analyst

analyst

分析者、アナリスト

語源

【広告】

analytic

analytic

分析的な ◇cf. synthetic(=総合的な、合成の)

語源

analyze/lyse

analyze/lyse

分析する

語源

catalysis

catalysis

(化)触媒作用(現象、反応) ◇cata(=down)

語源

catalyzer

catalyzer

触媒

語源

electrolysis

electrolysis

電気分解

語源