otolaryngology UK /ˌəʊtə(ʊ)ˌlæɹɪŋˈɡɒləd͡ʒi/US /ˌoʊtoʊˌlɛɹɪŋˈɡɑləd͡ʒi/ noun1 •The study of diseases of the ear, nose and throat.