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 \

Medical Definition of hematemesis 

: the vomiting of blood

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