odontologyPronunciation: /ˌɒdɒnˈtɒlədʒi, ˌəʊdɒn-/Definition of odontology noun [mass noun] the scientific study of the structure and diseases of teeth. Derivatives odontologicalPronunciation: /-təˈlɒdʒɪk(ə)l/ adjective odontologist noun odontology in other Oxford dictionaries Definition of odontology in the US English dictionary