 ##  [Ontology](/ontology) 

  ##  [Ontology](https://natural.quantumdictionary.io/ontology-0) 

  
 [![Natural & Formal Sciences Dictionary](/sites/default/files/styles/large/public/2026-01/Natural%20%26%20Formal%20Sciences.png.webp?itok=2kCDRVQv)](/topic-specific-dictionaries/natural-formal-sciences)


**Natural &amp; Formal Sciences Dictionary**

 
Definition

A formal, explicit specification of concepts, classes, relationships, properties, and axioms within a domain that enables shared understanding, reasoning, and interoperability across systems and agents.