hematemesis

noun
he·​ma·​tem·​e·​sis
variants: or chiefly British haematemesis \ ˌhē-​mə-​ˈtem-​ə-​səs also ˌhē-​mə-​tə-​ˈmē-​səs \
plural hematemeses\ -​ˌsēz How to pronounce hematemeses (audio) \

Medical Definition of hematemesis

: the vomiting of blood