Defn: Ontological.
ONTOLOGICAL
On`to*log"ic*al, a. Etym: [Cf. F. ontologique.]
Defn: Of or pertaining to ontology.
ONTOLOGICALLY
On`*to*log"ic*al*ly, adv.
Defn: In an ontological manner.
ONTOLOGIST
On*tol"o*gist, n. Etym: [Cf.F. ontologiste.]
Defn: One who is versed in or treats of ontology. Edin. Rev.
ONTOLOGY
On*tol"o*gy, n. Etym: [Gr. -logy: cf.F. ontologie.]
Defn: 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.
ONUS
O"nus, n. Etym: [L.]