ontology
on.tol.o.gy \-je-\ n [NL ontologia, fr. ont- + -logia -logy] 1: a branch of metaphysics relating to the nature and relations of being 2: a particular theory about the nature of being or the kinds of existence
Webster's English Dictionaryon.tol.o.gy \-je-\ n [NL ontologia, fr. ont- + -logia -logy] 1: a branch of metaphysics relating to the nature and relations of being 2: a particular theory about the nature of being or the kinds of existence