> For the complete documentation index, see [llms.txt](https://chembl.gitbook.io/unichem/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://chembl.gitbook.io/unichem/definitions.md).

# Definitions

- [What is an Assignment?](https://chembl.gitbook.io/unichem/definitions/what-is-an-assignment.md)
- [What is meant by a 'src\_id' and a 'src\_compound\_id' in UniChem ?](https://chembl.gitbook.io/unichem/definitions/what-is-meant-by-a-src_id-and-a-src_compound_id-in-unichem.md)
- [Glossary of Terms](https://chembl.gitbook.io/unichem/definitions/glossary-of-terms.md)