Operating microscope

/ˈɒpəɹˌeɪtɪŋ mˈaɪkɹəskˌəʊp/

/ˈɑːpɚɹˌeɪɾɪŋ mˈaɪkɹəskˌoʊp/

binocular microscope used in surgery to provide a clear view of small and inaccessible parts of the body (as in microsurgery)