Final answer:
A glossary is the reference material that provides the meaning of unfamiliar or technical terms used in a text.
Step-by-step explanation:
The reference material that provides the meaning of unfamiliar or technical terms used in a text is called a glossary. A glossary is a collection of important terms encountered in the text, and it often includes hyperlinked words in the text that lead to the glossary. The entries in a glossary are internally linked to other glossary items, and they may also include page numbers for easy navigation in the text. A glossary is a valuable resource for understanding and clarifying the meaning of unfamiliar or technical terms.