ONTOLOGY

ontology. Ontology, n. the science of being, metaphysics

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On‐tol″o‐gy (?), n. [[Gr. � the things which exist (pl.neut. of �, �, being, p. pr. of � to be) + -logy: cf. F. ontologie.]] That department of the science of metaphysics which investigates and explains the nature and essential properties and relations of all beings, as such, or the principles and causes of being.