1. (computer science) a rigorous and exhaustive organization of some knowledge domain that is usually hierarchical and contains all the relevant entities and their relations 
2. The metaphysical study of the nature of being and existence

Derived forms: ontologies

See also: ontological

Type of: arrangement, metaphysics, organisation [Brit], organization, system

Encyclopedia: Ontology

• water-cooled
• water-cooled reactor
• water-insoluble
• water-lily family
• water-loving
• water-milfoil family
• water-plantain family
• water-rate
• water-repellent
• water-resistant
• water-shield
• water-shield family
• water-skiing
• water-soluble
• water-soluble vitamin
• water-target
• lifework
• LIFO
• lift
• lift bridge
• lift out
• lift pump
• lift shaft
• lift up
• liftable