DefinedTerm Schema
DefinedTerm is a schema.org type for individual terms with a fixed definition – glossary entries or technical terms, for example – which are frequently grouped together in a parent DefinedTermSet.
In practice
For a glossary like this one, DefinedTerm makes every entry machine-readable as a self-contained, clearly delimited unit of knowledge – exactly the format AI systems prefer to cite when they are asked what a technical term means.