hematoscope

noun
he·​ma·​to·​scope
variants: or chiefly British haematoscope \ ˈhē-​mət-​ə-​ˌskōp How to pronounce haematoscope (audio) , hi-​ˈmat-​ə-​ How to pronounce haematoscope (audio) \

Medical Definition of hematoscope

: an instrument for the spectroscopic examination of blood