noun
glossary; terminology explanation
Commonly used in computing and technical contexts for a list of terms with definitions.
このソフトの用語解説には、専門用語の定義が載っている。
The glossary of this software contains definitions of technical terms.
辞書 is a general dictionary, while 用語解説 is a glossary or explanation of specific terms, often within a document or application.
Compound of 用語 (term, terminology) and 解説 (explanation, commentary).