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: O O. Oa Ob Oc Od Oe Of Og Oh Oi Oj Ok Ol Om On Oo Op Oq Or Os Ot Ou Ov Ow Ox Oy Oz
ontogeny | ontologic | ontological | ontologically | ontologist | ontology | onus | onward | onward motion | onwardness | onwards

ontology

 : 
Noun
 : 
on=tol=o=gy

CIDE DICTIONARY

ontologyn. [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.  [1913 Webster]
  •  A systematic arrangement of all of the important categories of objects or concepts which exist in some field of discourse, showing the relations between them. When complete, an ontology is a categorization of all of the concepts in some field of knowledge, including the objects and all of the properties, relations, and functions needed to define the objects and specify their actions. A simplified ontology may contain only a hierarchical classification (a taxonomy) showing the type subsumption relations between concepts in the field of discourse. An ontology may be visualized as an abstract graph with nodes and labeled arcs representing the objects and relations.
    "The concepts included in an ontology and the hierarchical ordering will be to a certain extent arbitrary, depending upon the purpose for which the ontology is created. This arises from the fact that objects are of varying importance for different purposes, and different properties of objects may be chosen as the criteria by which objects are classified. In addition, different degrees of aggregation of concepts may be used, and distinctions of importance for one purpose may be of no concern for a different purpose."  [PJC]

OXFORD DICTIONARY

ontology, n. the branch of metaphysics dealing with the nature of being.

Derivative
ontological adj. ontologically adv. ontologist n.
Etymology
mod.L ontologia f. Gk on ont- being + -LOGY

THESAURUS

ontology

aesthetics, axiology, casuistry, cosmology, epistemology, ethics, existentialism, first philosophy, gnosiology, logic, mental philosophy, metaphysics, moral philosophy, phenomenology, philosophastry, philosophic doctrine, philosophic system, philosophic theory, philosophical inquiry, philosophical speculation, philosophy, school of philosophy, school of thought, science of being, sophistry, theory of beauty, theory of knowledge, value theory

ROGET THESAURUS

ontology

Existence

N existence, being, entity, ens, esse, subsistence, reality, actuality, positiveness, fact, matter of fact, sober reality, truth, actual existence, presence, coexistence, stubborn fact, hard fact, not a dream, no joke, center of life, essence, inmost nature, inner reality, vital principle, ontology, existing, existent, under the sun, in existence, extant, afloat, afoot, on foot, current, prevalent, undestroyed, real, actual, positive, absolute, true, substantial, substantive, self-existing, self-existent, essential, well-founded, well-grounded, unideal, unimagined, not potential, authentic, actually, in fact, in point of fact, in reality, indeed, de facto, ipso facto, ens rationis, ergo sum cogito, thinkest thou existence doth depend on time?.


For further exploring for "ontology" in Webster Dictionary Online


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