Glossary | Safety and health at work EU-OSHA (europa.eu)
EU-OSHA Glossaries | Safety and health at work EU-OSHA (europa.eu)
This link from efsa provides provides easy-to-understand definitions for the main scientific terms used in the risk assessment domain.
The glossary is a living document subject to regular updates. Relevant missing terms may be suggested by using the Ask A Question online form.