What reference material would you use that is located in the back of a book to learn the meaning of technical vocabulary?

The reference material located in the back of a book that you can use to learn the meaning of technical vocabulary is called a glossary. A glossary is a specialized section that provides definitions of specific terms or jargon used in a particular field or subject. It is arranged alphabetically, allowing readers to easily locate and understand the meanings of unfamiliar technical terms or vocabulary used in the book.