序じょ説せつ

noun

introduction; introductory remarks

Used for a preliminary section of a book, thesis, or lecture that outlines the main content. More formal than はじめに.

• この本ほんの序じょ説せつで、著ちょ者しゃは研けん究きゅうの目もく的てきを説せつ明めいしている。

  In the introduction of this book, the author explains the purpose of the research.