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he·mo·tho·rax
variants:
or chiefly British haemothorax \ ˌhē-mə-ˈthō(ə)r-ˌaks, -ˈthȯ(ə)r- 
\
\ plural hemothoraxes or hemothoraces\ -ˈthōr-ə-ˌsēz, -ˈthȯr- \
\Medical Definition of hemothorax
: blood in the pleural cavity
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