hemothorax

noun
he·​mo·​tho·​rax
variants: or chiefly British haemothorax \ ˌhē-​mə-​ˈthō(ə)r-​ˌaks, -​ˈthȯ(ə)r-​ How to pronounce haemothorax (audio) \
plural hemothoraxes or hemothoraces\ -​ˈthōr-​ə-​ˌsēz, -​ˈthȯr-​ How to pronounce hemothoraces (audio) \

Medical Definition of hemothorax

: blood in the pleural cavity